题解 | #小乐乐排电梯#

#include <stdio.h>

int main() {
    int n=0,a=0;
    scanf("%d",&n);
    while(1){
    if(n >= 12)
        a += 4;
    else
        {a += 2;
        break;
    }
        n -= 12;
}
printf("%d",a);
    return 0;
}