彩虹

#include<bits/stdc++.h>
using namespace std;
const int N=1e9+10;
int a[5];
int main()
{
int n,m;
cin>>n>>m;
int x=n%6,y=m%6;
vector<long long> v;
if(x1)
{
if(y<=1) while(1) cout<<1;
if(y5) while(1) v.push_back(114514);
if(y>1 && y!=5) cout<<n+m;

}
if(x==2)
{
    if(y<=2) cout<<" "<<n+m;
    
    else cout<<-1;
}
if(x==3) while(1) continue;
if(x==4) cout<<a[114514];

}