1.A13 2.A4 3.A13B12C4 4.A4B5C5 5.C4D5E5 6.C5D6E6 7.E5F6G6 8.B5C6B6 9.D5E4F4 10.E6F7G7 11.G6H7I7 12.D6E7G6 13.I7H6H5 14.F7G8H8 15.J8 16.G6F7I8 17.B12C12J9 18.G7F8I7 19.H5I4J7 20.C6D7I6 21.H7G6J6 22.B6C7I5 23.I4J5J4 24.H8I9I10 25.F4G3J10 26.I7H8J12 27.C12D12J11 28.I10I11I12 29.D12E12L12 30.I6I7K12 31.G3H3L13 32.I9I10K11 33.H3I2L11 34.I5I4K10 35.I2J3L10 36.I4I3K9 37.E4F3L9 38.I3J2K8 39.F3G3L8 40.H8I9K7 41.G3H3L7 42.I7H8K6 43.J3K2L6 44.J2K3K5 45.K2L3L5 46.K3L4K4 47.L3M4M5 48.F7E8L3 49.J4K3M3 50.L3M2L2 51.H3I3L3 52.K5J4J3 53.J5I4K2 54.M2L1K1 55.I3J2J1