#include <stdio.h>
#include <conio.h>
main() 
{
    int a;
    printf("input number = ");
    scanf("%d",&a);
    if(a==0){
    float a,b,c;
    printf("\n-----Program : addition-----\n");
	printf("Input A :");
	scanf("%f",&a);
	printf("\nInput B :");
	scanf("%f",&b);
	c=a+b;
	printf("\nOutput : %.1f",c);
}
	else{
	printf("\n-----Program : deletetion-----\n");
    float a,b,c;
	printf("\nInput A :");
	scanf("%f",&a);
	printf("\nInput B :");
	scanf("%f",&b);
	c=a-b;
	printf("\nOutput : %.1f",c);
    }
}