#include<stdio.h>
void main()
{
    int month;
    printf("Input a month: ");
    scanf("%d",&month);
    int GetMonthInfo(int month)
    {
        if(month<1)
        {
            return -1;
        }
        else if(month<=3)
        {
            return 1;
        }
        else if(month<=6)
        {
            return 2;
        }
        else if(month<=9)
        {
            return 3;
        }
        else if(month<=12)
        {
            return 4;
        }
        else
        {
            return -1;
        }
    }
}