CREATE TABLE table_3670 ("Hand Number" FLOAT, "Prevailing Wind" TEXT, "Player 1" TEXT, "Player 2" TEXT, "Player 3" TEXT)

What is the hand number of the hand where player 1 is south and the east wind is prevailing?
SELECT COUNT("Hand Number") FROM table_3670 WHERE "Player 1" = 'South' AND "Prevailing Wind" = 'East'
SELECT COUNT("Hand Number") FROM "table_3670" WHERE "Player 1" = 'South' AND "Prevailing Wind" = 'East'