#include <stdio.h>

int main()
{
	char c, a[27][27];
	int n, i, j, k, t, row[28][2], wrong1, wrongn, right, count;
	while (scanf("%d\n", &n) != EOF)
	{
		for (i = 0; i < 27; i++)
			for (j = 0; j < 27; j++)
				a[i][j] = 0;
		for (i = 0; i < 28; i++)
			for (j = 0; j < 2; j++)
				row[i][j] = 0;
		for (i = 0; i < n; i++)
		{
			for (j = 0; j < n; j++)
			{
				scanf("%c", &a[i][j]);
				//printf("%c", a[i][j]);
			}
			scanf("%c", &c);
			//if (c != '\n') printf("AA!\n");
		}
		count = 0;
		for (i = 0; i < n; i++)
		{
			t = 0;
			for (j = 0; j < count; j++)
				if (row[j][0] == (int)a[0][i]) {
					row[j][1]++;
					t++;
				}
			if (t == 0) {
				row[count][0] = (int)(a[0][i]);
				row[count++][1] = 1; }
		}
		//row[n + 1][0] = (int)('a');
		//row[n + 1][1] = 0;	
		for (j = 1; j < n; j++)
		{
			for (i = 0; i < n; i++)
			{
				t = 0;
				for (k = 0; k < count; k++)
					if (row[k][0] == (int)a[j][i]) {
						row[k][1]++;
						t  = 1;
					}
				if (t == 0) 
				{
					row[count][0] = (int)a[j][i];
					row[count++][1] = 1;
				}
			}
		}
		wrong1 = 0;
		wrongn = 0;
		//for (i = 0; i < count; i++) printf(" %c %d\n", (char)row[i][0], row[i][1]);
		for (i = 0; i < count; i++)
		{
			if (row[i][1] == 1) wrong1 = row[i][0];
			if (row[i][1] == (n + 1)) wrongn = row[i][0];
			if (row[i][1] == n - 1) right = row[i][0]; 
		}
		if (wrong1 > 0)
			for (i = 0; i < n; i++)
				for (j = 0; j < n; j++)
					if ((int)a[i][j] == wrong1) printf("%d %d ", i + 1, j + 1);
					else continue;
		else {
			for (i = 0; i < n; i++)
			{
				t = 0;
				for (j = 0; j < n; j++) 
					if ((int)a[i][j] == wrongn) t++;
				if (t == 2) {
					printf("%d ", i + 1);
					break; }
			}
			for (i = 0; i < n; i++)
			{
				t = 0;
				for (j = 0; j < n; j++) 
					if ((int)a[j][i] == wrongn) ++t;
				if (t == 2) {
					printf("%d ", i + 1);
					break; }
			}
		}			
		printf("%c \n", (char)right);
	}
	return 0;
}