1: (1 5 8)

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

2: (4 10 6)

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

3: (7 20 9)

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

4: (2 11 8)

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