week days name using switch-case

#include<stdio.h>;
void main()
{
int number;
printf("Enter a Nummber : ");
scanf("%d",&number);

switch(number) // switching a number
{
    case 1:
    printf("nnnnn SUNDAY nnnn");
    break;
    case 2:
    printf("nnnnn MONDAY nnnn");
    break;
    case 3:
    printf("nnnnn TUESDAY nnnn");
    break;
    case 4:
    printf("nnnnn WEDNESDAY nnnn");
    break;
    case 5:
    printf("nnnnn THURSDAY nnnn");
    break;
    case 6:
    printf("nnnnn FRIEDAY nnnn");
    break;
    case 7:
    printf("nnnnn SATURDAY nnnn");
    break; // here break is compusury if we not use break
    // then default will also run.
    default:
    printf("nnn Invalid Number nnn");
    // IF VALUE DOES NOT
    // MATCH TO ANY CASE THEN DEFAULT
    // WILL RUN.
}
}