lab 1 using switch

#include<stdio.h>
int main()
{
    int a,sum;
    int b=0, p=0,s=0;
    printf("Welcome to KKCB\nThe Menu available menu is : \n");
     printf("(1)Food Name: Burgar\n\tPrize: 100 Taka \n\n");
     printf("(2)Food Name: Pizza \n\tPrize: 300 taka \n\n");
     printf("(3)Food Name: Set Menu\n\tPrize: 250 taka\n\n(4)Check Total \n\n");
     printf("Enter the Food code (Situated beside the food name in bracket)");
    selection:
    printf("\nSelect your food : ");
    scanf("%d",&a);
    switch (a){
    case 1:
        b++;
        goto selection;
        break;
    case 2:
        p++;
        goto selection;
        break;
    case 3:
        s++;
        goto selection;
        break;
    case 4:
        printf("\nTotal Food Items : \n\n");
        if(b!=0)
        printf("\tBurger [%d] - %d Taka\n",b,b*100);
        if(p!=0)
        printf("\tPizza [%d] - %d Taka\n",p,p*300);
        if(s!=0)
        printf("\tSet Menu [%d] - %d Taka\n",s,s*250);
        sum=(b*100)+(p*300)+(s*250);
        printf("\nTotal Price : %d \n",sum);

        break;
    }
}