#include <stdio.h>
main()
{
	char ch;
	int n1,n2;
	clrscr();
	
	while(ch!='/')
	{
		printf("\nEnter Your Choice");
		printf("\n1. Addition");
		printf("\n2. Substraction ");
		printf("\n3. Multiplication ");
		printf("\n4. Division ");
		scanf("%c",&ch);
		printf("Enter two numbers");
		scanf("%d%d",&n1,&n2);
		switch (ch)
		{
			case '1':printf("\n%d + %d = %d",n1,n2,n1+n2);
						break;
			case '2':printf("\n%d - %d = %d",n1,n2,n1-n2);
						break;
			case '3':printf("\n%d * %d = %d",n1,n2,n1*n2);
						break;
			case '4':printf("\n%d / %d = %d",n1,n2,n1/n2);
						break;
			case '/':break;
			default:printf("\nInvalid choice press / to quit");
		}
	}
	getch();
}