def read_matrix(): (n, m) = map(int, input().split()) matrix = [] for _ in range(n): row = list(map(int, input().split())) matrix.append(row) return matrix def add_matrices(A, B): n = len(A) m = len(A[0]) result = [[0] * m for _ in range(n)] for i in range(n): for j in range(m): result[i][j] = A[i][j] + B[i][j] return result def print_matrix(matrix): for row in matrix: print(' '.join(map(str, row))) (n, m) = map(int, input().split()) A = read_matrix() B = read_matrix() C = add_matrices(A, B) print_matrix(C)