#include <stdio.h>
main(){
printf(" by Praewpraewa");	
int a,b,c;
printf("\ninput number =");
scanf("%d",&a);
if(a==1){
printf("Program Addition");
printf("\ninput A :");
scanf("%d",&a);
printf("\ninput B :");
scanf("%d",&b);
c=a+b;
printf("\nResult :%d",c);
}
else{
printf("Program Delition");
printf("\ninput A :");
scanf("%f",&a);
printf("\ninput B :");
scanf("%f",&b);
c=a-b;
printf("\nResult : %d",c);
	}
}