#include <stdio.h>
#include <iostream>
#include <math.h>

int main () {
	int max = INT_MIN, row, column;
	bool isInt = true, isSusic = true;
	char simbol;

	FILE* fp = fopen("file.txt", "r");
	char *string = (char*)malloc(sizeof(char)*1024);
	char *x = (char*)malloc(sizeof(char)*1024);
	char *y = (char*)malloc(sizeof(char)*1024);
	int *num = (int*)malloc(sizeof(int)*row*column);

	fscanf(fp, "%d %d\n", &row, &column);	
	for(int i = 0; i < row * column; i++) {
		memset(string, 0, sizeof(char)*1024);
		memset(x, 0, sizeof(char)*1024);
		memset(y, 0, sizeof(char)*1024);
		fscanf(fp, "%s", string);

		for(int j=0; string[j] != '\0' ; j++) {
			if(isdigit(string[j])|| (j == 0 && string[j] == '-')) {
				isInt = true;
				isSusic = false;
				continue;
			} else if(j != 0 && 
				(string[j] == '+' || 
				string[j] == '-' || 
				string[j] == '*')) {

				simbol = string[j];

				int k;
				for(k=0;k<j;k++)
					x[k] = string[k];
				x[k] = '\0';

				for(k=j +1;string[k]!='\0';k++)
					y[k-(j+1)] = string[k];
				y[k] = '\0';

				isInt = true;
				isSusic = true;
				break;
			} else {
				isInt = false;
				isSusic = false;
				break;
			}
		}

		if(isSusic) {
			for(int j=0; y[j] != '\0'; j++) {
				if(isdigit(y[j]) || (j ==0 && y[j] == '-')) {
					isInt = true;
					isSusic = true;
					continue;
				} else {
					isInt = false;
					isSusic = false;
					break;
				}
			}
		}
		if(isSusic) {
			switch(simbol) {
			case '+':
				num[i] = atoi(x) + atoi(y);
				break;
			case '-':
				num[i] = atoi(x) - atoi(y);
				break;
			case '*':
				num[i] = atoi(x) * atoi(y);
				break;
			default:
				printf("ERROR!\n");
				num[i] = INT_MIN;
				break;
			}
		} else if(!isInt) {
			num[i] = INT_MIN;
			continue;
		} else {
			num[i] = atoi(string);
		}
	}

	for(int i = 0; i < row; i++) {
		for(int j = 0; j < column; j++) {
			if(*(num + (i * column) + j) > max) {
				max = *(num + (i * column) + j);
			}
		}

		if(max == INT_MIN)
			printf("row %d: %s\n", i +1, "NaN");
		else 
			printf("row %d: %d\n", i +1, max);
		max = INT_MIN;
	}

	for(int i = 0; i < column; i++) {
		for(int j = 0; j < row; j++) {
			if(*(num + (column * j) + i) > max) {
				max = *(num + (column * j) + i);
			}
		}
		if(max == INT_MIN)
			printf("column %d: %s\n", i +1, "NaN");
		else 
			printf("column %d: %d\n", i +1, max);
		max = INT_MIN;
	}

	for(int i = 0; i < row; i++) {
		for(int j = 0; j < column; j++) {
			if(*(num + (i * column) + j) > max) {
				max = *(num + (i * column) + j);
			}
		}
	}
	if(max == INT_MIN)
		printf("matrix: %s\n","NaN");
	else 
		printf("matrix: %d\n", max);

	return 0;
}