C program to print Day of Week Name using switch case

#include<stdio.h>
int main()
{
	int week;

	printf("Enter week Number(1-7): ");
	scanf("%d",&week);

	switch(week)
	{
		case 1 : printf("Monday");
				 break;

		case 2 : printf("Tuesday");
				 break;

		case 3 : printf("Wednesday");
				 break;

		case 4 : printf("Thursday");
				 break;

		case 5 : printf("Friday");
				 break;

		case 6 : printf("Saturday");
				 break;

		case 7 : printf("Sunday");
				 break;

		default: printf("Invelid input! Please enter number 1-7");	
	}

	return 0;
}

Output

Enter week Number(1-7): 7
Sunday