# include<iostream> using namespace std; int main(){ int n,a[114][114],s; cin>>n; for(int i=0;i<n;i++){ s=0; for(int j=0;j<n;j++){ cin>>a[i][j]; if(a[i][j]==1) s++; }if(s%2==1){ cout<<"Corrupt"; return 0; } }for(int i=0;i<n;i++){ s=0; for(int j=0;j<n;j++){ if(a[j][i]==1) s++; }if(s%2==1){ cout<<"Corrupt"; return 0; } }cout<<"OK"; return 0; }