Problem 2

                Never    
C
       
#include<stdio.h>

int main ()
{
    int week;
    printf("Enter day number (1-7) :\n");
    scanf("%d",&week);
    if(week==1)
    {
        printf("SATURDAY");
    }
    else if(week==2)
    {
        printf("SUNDAY");
    }
    else if(week==3)
    {
        printf("MONDAY");
    }
    else if(week==4)
    {
        printf("TUESDAY");

    }
    else if(week==5)
    {
        printf("WEDNESDAY");
    }
    else if(week==6)
    {
        printf("THURSDAY");
    }
    else if(week==7)
    {
        printf("FRIDAY");
    }
    else
    {
        printf("Invalid Input!");
    }
    return 0;
}