#include <stdio.h>
 
int main()
{
    int day;
 
    printf("何日ですか？");
    scanf("%d", &day);
 
    // switch(day) case 3, 4, 5, 6 の書き換え
    if (day == 3 || day == 4 || day == 5 || day == 6) {
        printf("祝日です。\n");
    }
    // case 11, 18, 25 の書き換え
    else if (day == 11 || day == 18 || day == 25) {
        printf("日曜日です。\n");
    }
    // default の書き換え
    else {
        printf("平日です。\n");
    }
 
    return 0;
}

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