1: (1 5 10)

(0 15 2)(1 8 20 10 3)(4 12 6)(5)(7 19 17)(9 13 11)(14 18 16)

2: (4 12 6)

(0 15 2)(1 8 20 10 3)(4)(5)(6)(7 19 17)(9 13 11)(12)(14 18 16)

3: (3 20 10)

(0 15 2)(1 8 20)(3)(4)(5)(6)(7 19 17)(9 13 11)(10)(12)(14 18 16)

4: (0 15 2)

(0)(1 8 20)(2)(3)(4)(5)(6)(7 19 17)(9 13 11)(10)(12)(14 18 16)(15)