1: (0 2 10)

(0 9 5)(1 20 3)(2 12 10 7 6)(4 15 13 11 8)(14 18 16)(17 21 19)

2: (1 20 3)

(0 9 5)(1)(2 12 10 7 6)(3)(4 15 13 11 8)(14 18 16)(17 21 19)(20)

3: (2 12 6)

(0 9 5)(1)(2)(3)(4 15 13 11 8)(6 10 7)(12)(14 18 16)(17 21 19)(20)

4: (8 13 11)

(0 9 5)(1)(2)(3)(4 15 13)(6 10 7)(8)(11)(12)(14 18 16)(17 21 19)(20)