#include <bits/stdc++.h> 
using namespace std;
int main() 
{
int m=0,d=0;
cin>>m>>d;
if(m<10)
{
    cout<<"0";
}
cout<<m;
cout<<"-";
if(d<10)
{
    cout<<"0";
}
cout<<d;
    return 0;
}

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