1: (12 19 20)

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

2: (3 9 20)

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

3: (2 11 4)

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

4: (1 19 9)

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