#include <stdio.h>
main() {
	int a;
	printf("input number = ");
	scanf("%d",&a);
	if(a==0){
	printf("---------- program addition ----------\n");
		  float A,B,C;
	 printf("input A :");
	 scanf("%f",&A);
   	 printf("input B :");
   	 scanf("%f",&B);
   	 C=A+B;
   	  printf("A+B=C");
   	  printf("Result :%.2f",C);

	}
	else{
	printf("---------- program delition ----------\n");
		float A,B,C;
	 printf("input A :");
	 scanf("%f",&A);
   	 printf("input B :");
   	 scanf("%f",&B);
   	 C=A-B;
   	  printf("A-B=C");
   	  printf("Result :%.2f",C);
	}
}