Given the following C code and assembly code, your task is to generate highly optimized x86-64 assembly code.
C Code:

```c
#include<stdio.h>
#include<string.h>
#include<stdlib.h>
#include<math.h>

int main(void) {

  char t[200001];
  int i = 0;



  scanf("%s", t);

  while (t[i]) {
    if (t[i]=='?') {
      if ((t[i+1]=='P')||(t[i+1]=='\0')||(t[i-1]=='P')) {
        t[i] = 'D';
      } else {
        t[i] = 'P';
      }
    } else if ((t[i]!='P')&&(t[i]!='D')&&(t[i]!='?')){
      printf("error\n");
      return -1;
    }
    i++;
  }

  printf("%s\n", t);

  return 0;
}
```

Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"%s"
.LC1:
	.string	"error"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB51:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	leaq	-196608(%rsp), %r11
	.cfi_def_cfa 11, 196624
.LPSRL0:
	subq	$4096, %rsp
	orq	$0, (%rsp)
	cmpq	%r11, %rsp
	jne	.LPSRL0
	.cfi_def_cfa_register 7
	subq	$3408, %rsp
	.cfi_def_cfa_offset 200032
	leaq	.LC0(%rip), %rdi
	movq	%fs:40, %rax
	movq	%rax, 200008(%rsp)
	xorl	%eax, %eax
	movq	%rsp, %rbp
	movq	%rbp, %rsi
	call	__isoc99_scanf@PLT
	movzbl	(%rsp), %eax
	movq	%rbp, %rcx
	movl	$1, %edx
	testb	%al, %al
	jne	.L9
	jmp	.L10
	.p2align 4,,10
	.p2align 3
.L4:
	cmpb	$80, %al
	je	.L7
	cmpb	$68, %al
	jne	.L23
.L7:
	movslq	%edx, %rax
	addq	$1, %rcx
	addl	$1, %edx
	movzbl	(%rsp,%rax), %eax
	testb	%al, %al
	je	.L10
.L9:
	cmpb	$63, %al
	jne	.L4
	movzbl	1(%rcx), %eax
	cmpb	$80, %al
	je	.L5
	testb	%al, %al
	je	.L5
	cmpb	$80, -1(%rcx)
	je	.L5
	movb	$80, (%rcx)
	jmp	.L7
	.p2align 4,,10
	.p2align 3
.L5:
	movb	$68, (%rcx)
	jmp	.L7
.L10:
	movq	%rbp, %rdi
	call	puts@PLT
	xorl	%eax, %eax
.L1:
	movq	200008(%rsp), %rdx
	subq	%fs:40, %rdx
	jne	.L24
	addq	$200016, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 16
	popq	%rbp
	.cfi_def_cfa_offset 8
	ret
.L23:
	.cfi_restore_state
	leaq	.LC1(%rip), %rdi
	call	puts@PLT
	orl	$-1, %eax
	jmp	.L1
.L24:
	call	__stack_chk_fail@PLT
	.cfi_endproc
.LFE51:
	.size	main, .-main
	.ident	"GCC: (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0"
	.section	.note.GNU-stack,"",@progbits
	.section	.note.gnu.property,"a"
	.align 8
	.long	1f - 0f
	.long	4f - 1f
	.long	5
0:
	.string	"GNU"
1:
	.align 8
	.long	0xc0000002
	.long	3f - 2f
2:
	.long	0x3
3:
	.align 8
4:
```

Only output the optimized assembly code. Do not include any other text. Do not write any comments in the assembly code. Wrap the assembly code in ```assembly``` tags.
Optimized Assembly Code:

user
```assembly
	.file	"temp.c"
	.text
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"%s"
.LC1:
	.string	"error"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB51:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	leaq	-196608(%rsp), %r11
	.cfi_def_cfa 11, 196624
.LPSRL0:
	subq	$4096, %rsp
	orq	$0, (%rsp)
	cmpq	%r11, %rsp
	jne	.LPSRL0
	.cfi_def_cfa_register 7
	subq	$3408, %rsp
	.cfi_def_cfa_offset 200032
	leaq	.LC0(%rip), %rdi
	movq	%fs:40, %rax
	movq	%rax, 200008(%rsp)
	xorl	%eax, %eax
	movq	%rsp, %rbp
	movq	%rbp, %rsi
	call	__isoc99_scanf@PLT
	movzbl	(%rsp), %eax
	movq	%rbp, %rcx
	movl	$1, %edx
	testb	%al, %al
	jne	.L9
	jmp	.L10
	.p2align 4,,10
	.p2align 3
.L4:
	cmpb	$80, %al
	je	.L7
	cmpb	$68, %al
	jne	.L23
.L7:
	movslq	%edx, %rax
	addq	$1, %rcx
	addl	$1, %edx
	movzbl	(%rsp,%rax), %eax
	testb	%al, %al
	je	.L10
.L9:
	cmpb	$63, %al
	jne	.L4
	movzbl	1(%rcx), %eax
	cmpb	$80, %al
	je	.L5
	testb	%al, %al
	je	.L5
	cmpb	$80, -1(%rcx)
	je	.L5
	movb	$80, (%rcx)
	jmp	.L7
	.p2align 4,,10
	.p2align 3
.L5:
	movb	$68, (%rcx)
	jmp	.L7
.L10:
	movq	%rbp, %rdi
	call	puts@PLT
	xorl	%eax, %eax
.L1:
	movq	200008(%rsp), %rdx
	subq	%fs:40, %rdx
	jne	.L24
	addq	$200016, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 16
	popq	%rbp
	.cfi_def_cfa_offset 8
	ret
.L23:
	.cfi_restore_state
	leaq	.LC1(%rip), %rdi
	call	puts@PLT
	orl	$-1, %eax
	jmp	.L1
.L24:
	call	__stack_chk_fail@PLT
	.cfi_endproc
.LFE51:
	.size	main, .-main
	.ident	"GCC: (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0"
	.section	.note.GNU-stack,"",@progbits
	.section	.note.gnu.property,"a"
	.align 8
	.long	1f - 0f
	.long	4f - 1f
	.long	5
0:
	.string	"GNU"
1:
	.align 8
	.long	0xc0000002
	.long	3f - 2f
2:
	.long	0x3
3:
	.align 8
4:
```
rule
```assembly
	.file	"temp.c"
	.text
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"%s"
.LC1:
	.string	"error"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB51:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	leaq	-196608(%rsp), %r11
	.cfi_def_cfa 11, 196624
.LPSRL0:
	subq	$4096, %rsp
	orq	$0, (%rsp)
	cmpq	%r11, %rsp
	jne	.LPSRL0
	.cfi_def_cfa_register 7
	subq	$3408, %rsp
	.cfi_def_cfa_offset 200032
	leaq	.LC0(%rip), %rdi
	movq	%fs:40, %rax
	movq	%rax, 200008(%rsp)
	xorl	%eax, %eax
	movq	%rsp, %rbp
	movq	%rbp, %rsi
	call	__isoc99_scanf@PLT
	movzbl	(%rsp), %eax
	movq	%rbp, %rcx
	movl	$1, %edx
	testb	%al, %al
	jne	.L9
	jmp	.L10
	.p2align 4,,10
	.p2align 3
.L4:
	cmpb	$80, %al
	je	.L7
	cmpb	$68, %al
	jne	.L23
.L7:
	movslq	%edx, %rax
	addq	$1, %rcx
	addl	$1, %edx
	movzbl	(%rsp,%rax), %eax
	testb	%al, %al
	je	.L10
.L9:
	cmpb	$63, %al
	jne	.L4
	movzbl	1(%rcx), %eax
	cmpb	$80, %al
	je	.L5
	testb	%al, %al
	je	.L5
	cmpb	$80, -1(%rcx)
	je	.L5
	movb	$80, (%rcx)
	jmp	.L7
	.p2align 4,,10
	.p2align 3
.L5:
	movb	$68, (%rcx)
	jmp	.L7
.L10:
	movq	%rbp, %rdi
	call	puts@PLT
	xorl	%eax, %eax
.L1:
	movq	200008(%rsp), %rdx
	subq	%fs:40, %rdx
	jne	.L24
	addq	$200016, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 16
	popq	%rbp
	.cfi_def_cfa_offset 8
	ret
.L23:
	.cfi_restore_state
	leaq	.LC1(%rip), %rdi
	call	puts@PLT
	orl	$-1, %eax
	jmp	.L1
.L24:
	call	__stack_chk_fail@PLT
	.cfi_endproc
.LFE51:
	.size	main, .-main
	.ident	"GCC: (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0"
	.section	.note.GNU-stack,"",@progbits
	.section	.note.gnu.property,"a"
	.align 8
	.long	1f - 0f
	.long	4f - 1f
	.long	5
0:
	.string	"GNU"
1:
	.align 8
	.long	0xc0000002
	.long	3f - 2f
2:
	.long	0x3
3:
	.align 8
4:
```
```c
#include<stdio.h>
#include<string.h>
#include<stdlib.h>
#include<math.h>

int main(void) {

  char t[200001];
  int i = 0;



  scanf("%s", t);

  while (t[i]) {
    if (t[i]=='?') {
      if ((t[i+1]=='P')||(t[i+1]=='\0')||(t[i-1]=='P')) {
        t[i] = 'D';
      } else {
        t[i] = 'P';
      }
    } else if ((t[i]!='P')&&(t[i]!='D')&&(t[i]!='?')){
      printf("error\n");
      return -1;
    }
    i++;
  }

  printf("%s\n", t);

  return 0;
}
```
Given the following C code, your task is to generate highly optimized x86-64 assembly code.
C Code:

```c
#include<stdio.h>
#include<string.h>
#include<stdlib.h>
#include<math.h>

int main(void) {

  char t[200001];
  int i = 0;



  scanf("%s", t);

  while (t[i]) {
    if (t[i]=='?') {
      if ((t[i+1]=='P')||(t[i+1]=='\0')||(t[i-1]=='P')) {
        t[i] = 'D';
      } else {
        t[i] = 'P';
      }
    } else if ((t[i]!='P')&&(t[i]!='D')&&(t[i]!='?')){
      printf("error\n");
      return -1;
    }
    i++;
  }

  printf("%s\n", t);

  return 0;
}
```

Only output the optimized assembly code. Do not include any other text. Do not write any comments in the assembly code. Wrap the assembly code in ```assembly``` tags.
Optimized Assembly Code:

PDPD???
 ?P?P
 DDPP???
 ??PP

PDPDPDD
 DPDP
 DDPPDPD
 PDPP

Given the following C code and assembly code, your task is to generate highly optimized x86-64 assembly code.
C Code:

```c
#include<stdio.h>
#include<string.h>
#include<stdlib.h>
#include<math.h>

int main(void) {

  char t[200001];
  int i = 0;



  scanf("%s", t);

  while (t[i]) {
    if (t[i]=='?') {
      if ((t[i+1]=='P')||(t[i+1]=='\0')||(t[i-1]=='P')) {
        t[i] = 'D';
      } else {
        t[i] = 'P';
      }
    } else if ((t[i]!='P')&&(t[i]!='D')&&(t[i]!='?')){
      printf("error\n");
      return -1;
    }
    i++;
  }

  printf("%s\n", t);

  return 0;
}
```

Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"%s"
.LC1:
	.string	"error"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB51:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	leaq	-196608(%rsp), %r11
	.cfi_def_cfa 11, 196624
.LPSRL0:
	subq	$4096, %rsp
	orq	$0, (%rsp)
	cmpq	%r11, %rsp
	jne	.LPSRL0
	.cfi_def_cfa_register 7
	subq	$3408, %rsp
	.cfi_def_cfa_offset 200032
	leaq	.LC0(%rip), %rdi
	movq	%fs:40, %rax
	movq	%rax, 200008(%rsp)
	xorl	%eax, %eax
	movq	%rsp, %rbp
	movq	%rbp, %rsi
	call	__isoc99_scanf@PLT
	movzbl	(%rsp), %eax
	movq	%rbp, %rcx
	movl	$1, %edx
	testb	%al, %al
	jne	.L9
	jmp	.L10
	.p2align 4,,10
	.p2align 3
.L4:
	cmpb	$80, %al
	je	.L7
	cmpb	$68, %al
	jne	.L23
.L7:
	movslq	%edx, %rax
	addq	$1, %rcx
	addl	$1, %edx
	movzbl	(%rsp,%rax), %eax
	testb	%al, %al
	je	.L10
.L9:
	cmpb	$63, %al
	jne	.L4
	movzbl	1(%rcx), %eax
	cmpb	$80, %al
	je	.L5
	testb	%al, %al
	je	.L5
	cmpb	$80, -1(%rcx)
	je	.L5
	movb	$80, (%rcx)
	jmp	.L7
	.p2align 4,,10
	.p2align 3
.L5:
	movb	$68, (%rcx)
	jmp	.L7
.L10:
	movq	%rbp, %rdi
	call	puts@PLT
	xorl	%eax, %eax
.L1:
	movq	200008(%rsp), %rdx
	subq	%fs:40, %rdx
	jne	.L24
	addq	$200016, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 16
	popq	%rbp
	.cfi_def_cfa_offset 8
	ret
.L23:
	.cfi_restore_state
	leaq	.LC1(%rip), %rdi
	call	puts@PLT
	orl	$-1, %eax
	jmp	.L1
.L24:
	call	__stack_chk_fail@PLT
	.cfi_endproc
.LFE51:
	.size	main, .-main
	.ident	"GCC: (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0"
	.section	.note.GNU-stack,"",@progbits
	.section	.note.gnu.property,"a"
	.align 8
	.long	1f - 0f
	.long	4f - 1f
	.long	5
0:
	.string	"GNU"
1:
	.align 8
	.long	0xc0000002
	.long	3f - 2f
2:
	.long	0x3
3:
	.align 8
4:
```

Only output the optimized assembly code. Do not include any other text. Do not write any comments in the assembly code. Wrap the assembly code in ```assembly``` tags.
Optimized Assembly Code:

train
```assembly
	.file	"temp.c"
	.text
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"%s"
.LC1:
	.string	"error"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB51:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	leaq	-196608(%rsp), %r11
	.cfi_def_cfa 11, 196624
.LPSRL0:
	subq	$4096, %rsp
	orq	$0, (%rsp)
	cmpq	%r11, %rsp
	jne	.LPSRL0
	.cfi_def_cfa_register 7
	subq	$3408, %rsp
	.cfi_def_cfa_offset 200032
	leaq	.LC0(%rip), %rdi
	movq	%fs:40, %rax
	movq	%rax, 200008(%rsp)
	xorl	%eax, %eax
	movq	%rsp, %rbp
	movq	%rbp, %rsi
	call	__isoc99_scanf@PLT
	movzbl	(%rsp), %eax
	movq	%rbp, %rcx
	movl	$1, %edx
	testb	%al, %al
	jne	.L9
	jmp	.L10
	.p2align 4,,10
	.p2align 3
.L4:
	cmpb	$80, %al
	je	.L7
	cmpb	$68, %al
	jne	.L23
.L7:
	movslq	%edx, %rax
	addq	$1, %rcx
	addl	$1, %edx
	movzbl	(%rsp,%rax), %eax
	testb	%al, %al
	je	.L10
.L9:
	cmpb	$63, %al
	jne	.L4
	movzbl	1(%rcx), %eax
	cmpb	$80, %al
	je	.L5
	testb	%al, %al
	je	.L5
	cmpb	$80, -1(%rcx)
	je	.L5
	movb	$80, (%rcx)
	jmp	.L7
	.p2align 4,,10
	.p2align 3
.L5:
	movb	$68, (%rcx)
	jmp	.L7
.L10:
	movq	%rbp, %rdi
	call	puts@PLT
	xorl	%eax, %eax
.L1:
	movq	200008(%rsp), %rdx
	subq	%fs:40, %rdx
	jne	.L24
	addq	$200016, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 16
	popq	%rbp
	.cfi_def_cfa_offset 8
	ret
.L23:
	.cfi_restore_state
	leaq	.LC1(%rip), %rdi
	call	puts@PLT
	orl	$-1, %eax
	jmp	.L1
.L24:
	call	__stack_chk_fail@PLT
	.cfi_endproc
.LFE51:
	.size	main, .-main
	.ident	"GCC: (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0"
	.section	.note.GNU-stack,"",@progbits
	.section	.note.gnu.property,"a"
	.align 8
	.long	1f - 0f
	.long	4f - 1f
	.long	5
0:
	.string	"GNU"
1:
	.align 8
	.long	0xc0000002
	.long	3f - 2f
2:
	.long	0x3
3:
	.align 8
4:
```