1: (1 5 10)

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

2: (1 11 8)

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

3: (3 12 6)

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

4: (0 4 2)

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