#include <iostream>
    using namespace std;

int main() {
    int x;
    cin>>x; 
    for(int i=1; i<=x; i++){ 
        
        
        for( int j =1; j<=i; j++){
           
            if((i+j)%2==0){
                cout<<"1";
            }
            else {cout<<"0";}
            
        }
        cout<<endl;
    }
}

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