#BOJ 2566 최댓값
board = [list(map(int, input().split())) for _ in range(9)]
max_val = board[0][0]
max_row, max_col = 0, 0
for r in range(9):
for c in range(9):
if board[r][c] >= max_val:
max_val = board[r][c]
max_row = r + 1
max_col = c + 1
print(max_val)
print(max_row, max_col)
cf)max_val = max(map(max, board))
을 사용하면 한 번에 최댓값을 찾을 수 있다!