#include <stdio.h> 
#include <conio.h> 
main() { 
int a; 
printf("Program : Calculate adding numbers");
printf("\ninput number = "); 
scanf("%d",&a); 
if(a>=1){ 
printf("Program : delete");
float a,b,c;
	printf("\nInput a :");
	scanf("%f",&a);
    printf("Input b :");
    scanf("%f",&b);
	c=a-b;
	printf("Result : %.2f",c); 
} 
else{ 
  printf("Program : plus");
   float a,b,c;
	printf("\nInput a :");
	scanf("%f",&a);
    printf("Input b :");
    scanf("%f",&b);
	c=a+b;
	printf("Result : %.2f",c); 
} 
}