conditional statement2

#include <stdio.h>
int main()
{
	int a;
	char operation;
	printf("enter a number from 1 to 4");
	scanf("%d",&a);
switch (operation)
	{case 1:
		printf("Pizza\n prize-Rs 120\n");
		break;
	case 2:
		printf("Burger\n price-Rs 105\n");
		break;
	case 3:
		printf("Pasta\n price-Rs 180");
		break;
	case 4:
		printf("French Fries\n price-Rs 99\n");
		break;
	default:
		printf("error");
		break;
	}
	
}