#include<bits/stdc++.h>
using namespace std;
int a[1000][1000];
int main()
{
    int n,m=0,t=0,x=0,y=0,i,j,x1,y1;
    cin>>n;
    for(i=1;i<=n;i++)
    {
        for(j=1;j<=n;j++)
        {
            cin>>a[i][j];   
        }
    }
    for(i=1;i<=n;i++)
    {
        m=0,t=0;
        for(j=1;j<=n;j++)
        {
            m+=a[i][j];
            t+=a[j][i];
        }
        if(m%2==1)
        {
        	x1=i;
            x++;
        }
        if(t%2==1)
        {
        	y1=i;
            y++;
        }
    }
    i--;
    j--;
    //cout<<x<<" "<<y<<endl;
    if(x==1&&y==1)
    {
        cout<<x1<<" "<<y1;
        return 0;
    }
    if(x==0&&y==0)
    {
        cout<<"OK";
        return 0;
    }
    cout<<"Corrupt";
    return 0;
}