1[ 2(True, True), 3(True, True), 4(True, [ 5 (True, True), 6 (True, True), 7 (True, [(True, True), (True, True), (True, True), (True, True)]), 8 ]), 9(True, '*'), 10(True, [ 11 [(True, True), (True, True), (True, True), (True, True)], 12 [(True, True), (True, True), (True, True), (True, True)], 13 ]), 14(True, True), 15(True, True), 16(True, True), 17] 18