#include<iostream> // cin\cout\endl #include<cstdio> //scanf()\printf() #include<cstring> // strcpy()\strcat()\strcmp()\strlen()\memset() #include<cmath> //sqrt()\pow()\abs()\ceil()\floor()\max()\min() using namespace std; int main(){ int n,a[101][101],s1=0,s2=0,j,x=0; cin>>n; for(int i=1;i<=n;i++){ for(j=1;j<=n;j++){ cin>>a[i][j]; } } for(int i=1;i<=n;i++){ for(j=1;j<=n;j++){ s1+=a[i][j],s2+=a[i][j]; } if(s2%2==0) x=1; else{ cout<<"Corrupt"; return 0; } s1=0; } if(s2%2==0) x=1; else{ cout<<"Corrupt"; return 0; s2=0; } cout<<"OK"; return 0; }