#include <iostream>
#include <conio.h>
#include <math.h>
using namespace std;
int main()
{
    setlocale(LC_ALL, "Russian");
    int x,y;
    M1:cout<<"\nВведите  точки Х и Y через пробел\n";
    cin>>x>>y;
    switch(x){
        case 0:{
            switch(y){
                case 0: cout<<"2"; goto M1;
                case 1: cout<<"2"; goto M1;
                case 2: cout<<"0"; goto M1;
            }
            break;
        }
        case 1:{
            switch(y){
                case 0: cout<<"1"; goto M1;
                case 1: cout<<"0"; goto M1;
                case 2: cout<<"2"; goto M1;
            }
            break;
        }
        case 2:{
            switch(y){
                case 0: cout<<"1"; goto M1;
                case 1: cout<<"2"; goto M1;
                case 2: cout<<"0"; goto M1;
            }
            break;
        }
    }
    getch();
    return 0;
}