day18_input = [[[[[4, 6], 4], [1, 7]], [[[1, 6], [8, 4]], [1, 1]]], [[[[8, 5], [9, 2]], 1], [[2, 5], [[9, 4], [5, 9]]]], [[[[7, 3], 0], [8, 9]], 6], [[6, [[7, 2], [6, 2]]], [[[9, 8], 9], [9, 6]]], [2, [[[9, 2], 6], [[5, 3], [6, 7]]]], [[[5, [9, 6]], 0], [[[2, 8], [7, 0]], [7, [4, 4]]]], [[[[5, 0], 2], [0, 1]], 4], [2, [8, 8]], [[[[2, 5], [6, 8]], [[9, 8], 4]], [[[2, 3], [5, 8]], [9, 5]]], [[[[0, 7], [9, 4]], [[1, 0], 9]], [[[8, 8], [7, 2]], [3, [6, 5]]]], [[[[3, 2], 8], 1], [[4, [3, 4]], [[6, 5], [0, 6]]]], [[[7, 8], 8], [0, [5, 2]]], [[3, [3, 3]], [[[6, 9], [1, 1]], [6, [2, 9]]]], [[[[9, 7], [6, 8]], 4], [[[8, 2], [2, 9]], [8, [6, 2]]]], [[[[7, 3], 2], [9, 6]], [[[1, 7], [0, 0]], [4, 9]]], [[8, [7, [1, 0]]], 7], [[[7, [5, 1]], 0], [[8, [5, 3]], 4]], [1, [[[2, 6], 2], [1, [6, 0]]]], [[[5, 8], [[9, 1], 1]], [[3, [5, 0]], 5]], [[[[1, 5], [4, 9]], 8], [[7, 0], 6]], [9, [[0, [1, 0]], 6]], [[[[6, 8], 6], 9], [[7, 3], 2]], [[9, [[8, 7], 4]], [[[4, 0], [9, 0]], [8, 1]]], [[[2, [4, 4]], [7, [0, 1]]], [8, [[8, 6], [4, 0]]]], [0, 9], [[[[1, 8], [7, 4]], [[5, 0], [6, 1]]], [5, 7]], [[[[8, 2], [9, 2]], [8, [8, 4]]], [0, 4]], [[[[0, 7], [5, 8]], 3], 6], [[[7, [3, 4]], [3, [1, 5]]], 2], [[[1, [4, 2]], 5], [[1, 2], 1]], [[[[8, 2], [0, 9]], 1], [[[9, 0], [3, 5]], [8, [8, 0]]]], [[[0, 5], [1, [3, 3]]], [[[1, 0], [5, 2]], [7, 5]]], [[[4, [7, 3]], [0, 9]], [[2, 0], 8]], [[[[2, 2], 8], [7, 1]], 5], [[1, [[3, 8], 7]], [[7, [5, 8]], [4, [1, 7]]]], [[[[2, 7], 4], [8, [9, 1]]], [[5, 2], [4, 3]]], [[2, [7, 2]], [[8, [0, 8]], [0, [4, 2]]]], [[6, [6, [7, 4]]], [[7, [2, 0]], [[8, 2], 8]]], [[[7, [1, 7]], [[4, 1], 4]], [1, [4, 6]]], [1, [[1, 0], [[0, 3], [6, 9]]]], [[[[8, 6], 0], [[2, 8], [3, 0]]], [[[8, 2], 7], [[3, 0], 5]]], [[[[2, 8], 4], [2, [0, 7]]], [[3, [1, 2]], [[8, 0], [4, 2]]]], [1, 8], [[5, 6], 6], [[[[1, 0], [3, 6]], [[4, 0], 1]], [0, 7]], [[[5, [9, 6]], [7, [1, 2]]], 2], [[[6, 4], [[5, 6], [1, 8]]], [[[9, 0], [7, 7]], [[5, 8], [6, 8]]]], [8, 5], [5, [[[6, 8], 8], 0]], [[[[5, 7], [0, 0]], [6, [0, 0]]], [[[5, 5], 3], [[1, 1], [3, 4]]]], [[[4, 0], [[8, 6], 2]], [[3, [3, 1]], [[2, 8], [7, 2]]]], [[[8, 7], [[5, 5], [5, 3]]], 4], [[[[5, 4], 1], [3, 4]], [3, 5]], [[[6, 5], [[6, 3], 6]], 4], [[[[2, 2], [7, 1]], [6, 6]], [[8, [8, 7]], [[1, 6], [3, 0]]]], [[4, [[5, 0], [7, 4]]], [3, 1]], [[[3, [5, 8]], 5], [1, [[9, 6], 3]]], [[0, [[3, 0], [8, 7]]], [[1, 3], 3]], [5, [[3, [3, 3]], [3, 6]]], [[[[7, 3], 8], 3], [2, [[9, 8], 2]]], [[[2, 4], [[1, 2], 5]], [[[1, 2], [6, 0]], 3]], [[9, [[1, 1], [1, 7]]], [1, [2, [9, 1]]]], [[[5, [0, 0]], 5], [6, [0, 1]]], [[3, [[6, 5], 7]], [[7, 8], 3]], [[5, [2, 6]], 8], [[6, [0, [3, 0]]], [1, 2]], [3, [[[3, 7], 2], [[4, 0], 6]]], [[[8, [2, 7]], [4, 1]], [[2, [4, 2]], 3]], [[3, 2], [[[8, 8], [8, 6]], [[5, 3], 1]]], [1, [2, [[3, 2], [2, 9]]]], [8, [[9, 1], [[8, 4], [9, 9]]]], [[[4, [4, 6]], [1, 8]], [[7, 7], [[7, 4], 3]]], [[[8, 2], [[9, 7], [0, 8]]], [[4, 4], [[6, 1], 5]]], [[[3, [6, 6]], [[8, 6], [3, 7]]], [[7, 9], [[5, 3], 8]]], [[[8, 9], [8, 6]], [[[3, 3], [2, 9]], [[6, 6], 9]]], [8, [[[3, 0], 5], 2]], [[[[1, 3], 1], [[1, 9], 4]], [7, [3, 1]]], [[[[9, 3], 3], [[6, 8], 7]], [[[2, 0], 3], [8, [3, 6]]]], [[[[7, 1], [8, 1]], [[4, 6], [5, 9]]], [[[4, 5], 3], 5]], [6, [[3, [0, 0]], [6, 6]]], [[[[8, 8], [7, 6]], 3], [[[7, 7], [1, 1]], [[1, 8], [1, 4]]]], [[9, [8, [3, 4]]], [[6, 2], [1, 5]]], [[5, [3, 3]], [5, [0, 5]]], [[[[8, 9], 5], [1, 9]], [[5, [2, 8]], [[6, 4], [9, 4]]]], [2, 6], [[[[1, 4], 8], 5], [5, [0, [1, 7]]]], [[[[1, 0], [9, 9]], [0, 9]], [[[5, 4], [1, 6]], [9, [6, 7]]]], [[[7, 1], 5], [[3, 2], 5]], [[9, [[8, 8], [7, 0]]], [5, [3, [1, 3]]]], [[[[5, 2], [7, 5]], [4, [6, 7]]], [[[8, 1], 6], [2, [6, 6]]]], [[[5, 7], [6, [8, 2]]], [8, 2]], [[[[5, 7], 8], [[9, 8], 2]], [[2, 8], [[7, 6], 3]]], [[1, [[1, 6], 1]], [0, [[5, 9], [9, 1]]]], [[[[1, 4], [5, 0]], [[5, 5], [9, 3]]], [[6, 4], [4, [4, 6]]]], [7, [[5, [4, 8]], [[5, 9], 2]]], [[[[2, 9], [1, 8]], [4, 2]], 0], [[5, [[0, 9], [3, 7]]], [2, [6, [4, 8]]]], [[0, [5, 5]], 0], [[[5, 0], [[0, 5], 8]], [6, [[8, 7], [6, 5]]]], [[[5, [8, 2]], [8, 4]], [[6, 2], [8, [7, 0]]]]
]