s = "Hello, WORLD. KOREA"
s_idx = 7 # ¼Ò¹®ÀÚ º¯°æ ½ÃÀÛ indexe_idx =12 # ¼Ò¹®ÀÚ º¯°æ Á¾·á index
[°á°ú]
Hello, world. KOREA