#include<stdio.h>
int main(){
    float a,b;
    
    scanf("%f", &a);
    scanf("%f", &b);
    
    float sum = a + b;
    float difference = a - b;
    
    if(sum == (int)sum)
      printf("%d\n", (int)sum);
    else
        print("%.2f\n", sum); 
         
    if (difference == (int)difference)
        printf("%d\n", difference);
    else
        printf("%.2f\n",difference);
        
    return 0;
}