11_9[1]

01[1] 19_1[1] 18_2[1] 16_3[1] 15_4[1] 15_6[1] 12_8[1] 9_10[1] 8_11[1] 8_12[1] 8_13[1] 7_14[1] 5_15[1] 6_16[1]