#include <stdio.h>

int main() 
{ 
    int day;
    printf("enter choice\n");
    scanf("%d",&day);
    switch(day)
    {
        case1:printf("monday");
              break;
        case2:printf("tuesday");
              break;
        case3:printf("wednesday");
              break;
        case4:printf("thursday");
              break;
        case5:printf("friday");
              break;
        case6:printf("satruday");
              break;
        case:printf("sunday");
             break;
        default:printf("invalid choice");     
    }
    return 0;
}