#include <bits/stdc++.h>

#define FOR(i,a,b) for (int i = (a); i <= (b); i++)
#define FORD(i,a,b) for (int i = (a); i >= (b); i--)
#define REP(i,b) for (int i = 0; i < (b); i++)

using namespace std;

typedef long long ll;

ll xbals[1000005];
ll ybals[1000005];

int main() {
	int n;
	
	while (cin>>n) {
		vector<vector<char>>V(n,vector<char>(n));
		REP(i,n)
			REP(j,n){
				cin>>V[i][j];
			}
		
		map<char,int>M;

		REP(i,n)
		REP(j,n)
		M[V[i][j]]++;
		
		char team=0;
		char bad=0;
		for(auto it=M.begin(); it!=M.end(); it++){
			if(it->second==n-1)team=it->first;
		}
		
		int riadok=-1;
		int stlpec=-1;
		REP(i,n){
			int ok=0;
			REP(j,n){
				if(V[i][j]==team){
					ok=1;
				}
			}
			if(ok==0){
				riadok=i;
			}
		}
		
		REP(i,n){
			int ok=0;
			REP(j,n){
				if(V[j][i]==team)
					ok=1;
			}
			if(ok==0)
				stlpec=i;
		}
		cout<<riadok+1<<" "<<stlpec+1<<" "<<team<<endl;



	}
	return 0;
}