1: (6 10 15)

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

2: (4 10 8)

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

3: (5 18 7)

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

4: (9 16 13)

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