World three hundred and seventy-six is with a plus sign, surrounded by walls.
Step by step solution
Go DOWN, DOWN, DOWN, LEFT and push UP. Push LEFT, LEFT, LEFT, go RIGHT, UP, UP, UP, LEFT, UP, LEFT, LEFT, DOWN, LEFT, DOWN, DOWN, DOWN, RIGHT and push RIGHT. Go DOWN, DOWN, DOWN and push RIGHT. Go LEFT, UP, UP, UP, LEFT, LEFT, UP, UP, UP, RIGHT, UP, RIGHT, RIGHT, DOWN and push LEFT. Push DOWN, DOWN, DOWN and DOWN. Go UP, LEFT, LEFT, UP, UP, UP, push RIGHT, go UP, RIGHT, push DOWN, DOWN, DOWN and DOWN. Go LEFT, LEFT, LEFT, LEFT, UP, UP, UP, push RIGHT, RIGHT, RIGHT, go UP, RIGHT, push DOWN and DOWN. Go UP, LEFT, LEFT, LEFT, LEFT, DOWN, DOWN and push RIGHT.
Go DOWN, RIGHT, push UP, UP, go DOWN, LEFT, LEFT, UP, UP, RIGHT, push RIGHT, RIGHT, go UP, RIGHT and push DOWN. Go RIGHT, RIGHT, DOWN, DOWN, DOWN, push LEFT, LEFT and LEFT. Go RIGHT, RIGHT, RIGHT, DOWN, DOWN, RIGHT, DOWN, DOWN, LEFT, push UP, UP, UP, UP, go LEFT, LEFT, LEFT and push LEFT. Go DOWN, DOWN, DOWN, push RIGHT, RIGHT and RIGHT. Go LEFT, LEFT, LEFT, UP, UP, UP, RIGHT, RIGHT, RIGHT, RIGHT, DOWN, DOWN, RIGHT, DOWN, DOWN, LEFT and push UP. Go LEFT, LEFT, LEFT, LEFT, UP, UP, UP, RIGHT, RIGHT, RIGHT, RIGHT, RIGHT, RIGHT, RIGHT, UP, UP, LEFT and push DOWN.
Go RIGHT, DOWN, push LEFT, LEFT, LEFT, LEFT, LEFT and LEFT. Go RIGHT, RIGHT, RIGHT, DOWN, push DOWN, go RIGHT, DOWN, DOWN, LEFT and push UP. Go LEFT, LEFT, LEFT, LEFT, UP, UP, push UP and UP. Go DOWN, RIGHT, RIGHT, RIGHT, RIGHT, DOWN, push DOWN, go RIGHT, DOWN and push LEFT. Go UP, UP, UP, LEFT, LEFT, LEFT, LEFT, UP, LEFT, LEFT, UP, UP, RIGHT, RIGHT, RIGHT, RIGHT, RIGHT, RIGHT, DOWN, push DOWN and DOWN. Go RIGHT, RIGHT, UP, UP and push LEFT. Go RIGHT, DOWN, DOWN, LEFT, LEFT, LEFT, LEFT, LEFT, LEFT, UP, LEFT, LEFT, UP, UP, RIGHT, RIGHT, RIGHT, RIGHT, RIGHT, RIGHT, push DOWN and DOWN.
Go UP, RIGHT, RIGHT, DOWN, DOWN, LEFT, push LEFT and LEFT. Go RIGHT, push DOWN, DOWN, go RIGHT, DOWN, DOWN, LEFT, push UP, UP, UP, UP, go RIGHT, RIGHT, UP, UP, LEFT, LEFT, push DOWN, go UP, RIGHT, RIGHT, DOWN, DOWN, LEFT and push LEFT.
Go UP, UP, UP, LEFT, LEFT, LEFT, LEFT, LEFT, LEFT, DOWN, DOWN, DOWN, push RIGHT and RIGHT.
Go DOWN, DOWN, DOWN, RIGHT, RIGHT and push RIGHT. Go LEFT, LEFT, LEFT, UP, UP, UP, LEFT, UP, LEFT, UP, UP, RIGHT, RIGHT, push DOWN and DOWN.
Go UP, UP, RIGHT, RIGHT, RIGHT, RIGHT, DOWN, DOWN, DOWN, DOWN, DOWN, RIGHT, DOWN, DOWN, LEFT, push UP, UP and UP.
Congratulations. You have completed world three hundred and seventy-six. Get ready for world three hundred and seventy-seven.