def find_element(matrix, m): for i in range(len(matrix)): for j in range(len(matrix[i])): if matrix[i][j] == m: return i, j return -1 # 读取输入 n, m = map(int, input().split()) matrix = [] for _ in range(n): matrix.append(list(map(int, input().split()))) # 查找元素并输出结果 position = find_element(matrix, m) if position == -1: print(-1) else: print(position[0] , position[1]) # 加1是因为题目中的索引从1开始