---

#include <stdio.h>
#include <stdlib.h>

void free_matrix(int **matrix, int rows) {
    for (int i = 0; i < rows; i++) free(matrix[i]);
    free(matrix);
}

int** allocate_matrix(int rows, int cols) {
    int **matrix = (int**)malloc(rows * sizeof(int*));
    if (matrix == NULL) return NULL;
    for (int i = 0; i < rows; i++) {
        matrix[i] = (int*)malloc(cols * sizeof(int));
        if (matrix[i] == NULL) {
            for (int j = 0; j < i; j++) free(matrix[j]);
            free(matrix);
            return NULL;
        }
    }
    return matrix;
}

void input_matrix(int **matrix, int rows, int cols) {
    for (int i = 0; i < rows; i++) {
        for (int j = 0; j < cols; j++) {
            scanf("%d", &matrix[i][j]);
        }
    }
}

void print_matrix(int **matrix, int rows, int cols) {
    for (int i = 0; i < rows; i++) {
        for (int j = 0; j < cols; j++) {
            printf("%d", matrix[i][j]);
            if (j < cols - 1) printf(" ");
        }
        if (i < rows - 1) printf("\n");
    }
}

int main() {
    int operation;
    if (scanf("%d", &operation) != 1 || operation < 1 || operation > 3) {
        printf("n/a");
        return 0;
    }
    
    if (operation == 1) {
        // Сложение
        int rows1, cols1, rows2, cols2;
        if (scanf("%d %d", &rows1, &cols1) != 2 || rows1 <= 0 || cols1 <= 0) {
            printf("n/a");
            return 0;
        }
        if (scanf("%d %d", &rows2, &cols2) != 2 || rows2 <= 0 || cols2 <= 0) {
            printf("n/a");
            return 0;
        }
        if (rows1 != rows2 || cols1 != cols2) {
            printf("n/a");
            return 0;
        }
        
        int **m1 = allocate_matrix(rows1, cols1);
        int **m2 = allocate_matrix(rows2, cols2);
        if (m1 == NULL || m2 == NULL) {
            if (m1) free_matrix(m1, rows1);
            if (m2) free_matrix(m2, rows2);
            printf("n/a");
            return 0;
        }
        
        input_matrix(m1, rows1, cols1);
        input_matrix(m2, rows2, cols2);
        
        int **result = allocate_matrix(rows1, cols1);
        if (result == NULL) {
            free_matrix(m1, rows1);
            free_matrix(m2, rows2);
            printf("n/a");
            return 0;
        }
        
        for (int i = 0; i < rows1; i++) {
            for (int j = 0; j < cols1; j++) {
                result[i][j] = m1[i][j] + m2[i][j];
            }
        }
        
        print_matrix(result, rows1, cols1);
        
        free_matrix(m1, rows1);
        free_matrix(m2, rows2);
        free_matrix(result, rows1);
    } else if (operation == 2) {
        // Умножение
        int rows1, cols1, rows2, cols2;
        if (scanf("%d %d", &rows1, &cols1) != 2 || rows1 <= 0 || cols1 <= 0) {
            printf("n/a");
            return 0;
        }
        if (scanf("%d %d", &rows2, &cols2) != 2 || rows2 <= 0 || cols2 <= 0) {
            printf("n/a");
            return 0;
        }
        if (cols1 != rows2) {
            printf("n/a");
            return 0;
        }
        
        int **m1 = allocate_matrix(rows1, cols1);
        int **m2 = allocate_matrix(rows2, cols2);
        if (m1 == NULL || m2 == NULL) {
            if (m1) free_matrix(m1, rows1);
            if (m2) free_matrix(m2, rows2);
            printf("n/a");
            return 0;
        }
        
        input_matrix(m1, rows1, cols1);
        input_matrix(m2, rows2, cols2);
        
        int **result = allocate_matrix(rows1, cols2);
        if (result == NULL) {
            free_matrix(m1, rows1);
            free_matrix(m2, rows2);
            printf("n/a");
            return 0;
        }
        
        for (int i = 0; i < rows1; i++) {
            for (int j = 0; j < cols2; j++) {
                result[i][j] = 0;
                for (int k = 0; k < cols1; k++) {
                    result[i][j] += m1[i][k] * m2[k][j];
                }
            }
        }
        
        print_matrix(result, rows1, cols2);
        
        free_matrix(m1, rows1);
        free_matrix(m2, rows2);
        free_matrix(result, rows1);
    } else if (operation == 3) {
        // Транспонирование
        int rows, cols;
        if (scanf("%d %d", &rows, &cols) != 2 || rows <= 0 || cols <= 0) {
            printf("n/a");
            return 0;
        }
        
        int **matrix = allocate_matrix(rows, cols);
        if (matrix == NULL) {
            printf("n/a");
            return 0;
        }
        
        input_matrix(matrix, rows, cols);
        
        int **result = allocate_matrix(cols, rows);
        if (result == NULL) {
            free_matrix(matrix, rows);
            printf("n/a");
            return 0;
        }
        
        for (int i = 0; i < rows; i++) {
            for (int j = 0; j < cols; j++) {
                result[j][i] = matrix[i][j];
            }
        }
        
        print_matrix(result, cols, rows);
        
        free_matrix(matrix, rows);
        free_matrix(result, cols);
    }
    
    return 0;
}