lista = [[6, 15, 16], [14, 7, 15], [1, 6, 4], [3, 9, 4], [1, 5, 6], [3, 12, 12], [11, 13, 3], [6, 11, 6], [7, 2, 12], [1, 4, 7], [10, 13, 9], [1, 18, 6], [11, 17, 6], [4, 11, 14], [11, 5, 17], [3, 7, 2], [5, 4, 17], [9, 15, 1], [8, 9, 1], [10, 1, 17], [3, 9, 5], [9, 3, 8], [9, 16, 16], [9, 10, 1], [4, 17, 16], [14, 17, 5], [5, 15, 16], [4, 14, 8], [9, 14, 3], [15, 14, 6], [11, 6, 10], [6, 8, 11], [12, 7, 1], [10, 8, 11], [1, 7, 2], [14, 3, 9], [15, 17, 16], [7, 10, 4], [6, 2, 7], [12, 17, 1], [3, 10, 3], [1, 2, 15], [10, 6, 13], [13, 12, 13], [9, 15, 15], [15, 6, 11], [7, 12, 8], [14, 2, 14], [7, 5, 7], [7, 11, 11], [8, 3, 14], [5, 11, 5], [13, 10, 7], [7, 3, 6], [14, 8, 17], [9, 9, 10], [1, 6, 9], [14, 13, 12], [15, 10, 2], [4, 14, 7], [2, 15, 4], [1, 12, 13], [7, 16, 11], [12, 15, 12], [10, 9, 14], [11, 15, 6], [14, 5, 7], [14, 14, 11], [2, 4, 1], [14, 4, 11], [5, 17, 4], [11, 5, 13], [7, 18, 15], [15, 5, 1], [4, 5, 15], [14, 11, 4], [11, 11, 2], [7, 3, 2], [11, 11, 3], [4, 14, 9], [1, 6, 8], [7, 7, 2], [4, 15, 16], [11, 15, 15], [12, 17, 13], [13, 5, 5], [9, 14, 3], [3, 1, 2], [3, 17, 9], [13, 4, 2], [6, 2, 10], [7, 13, 2], [10, 10, 5], [10, 4, 9], [8, 3, 6], [12, 15, 7], [15, 13, 13], [2, 16, 6], [1, 10, 3], [10, 18, 14]]