#include <stdio.h>
int main(void)
{
char ko , kq;
printf("A~Cまでの文字を入力してください。\n");
if (kq == 'A' || kq == 'a' || kq == 'B' || kq == 'b'|| kq == 'C' || kq == 'c')
else
return 0;
}
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