#include <stdio.h>
int main(void)
{
int n;
printf("月を入力せよ:\n");
scanf("%d", &n);
switch (n) {
case 3:
case 4:
case 5:
puts("春です。"); break;
case 6:
case 7:
case 8:
puts("夏です。"); break;
case 9:
case 10:
case 11:
puts("秋です。"); break;
case 1:
case 2:
case 12:
puts("冬です。"); break;
default :
puts("そんな月はないぞ"); break;
}
return 0;
}
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