1: (3 11 15)

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

2: (7 17 14)

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

3: (11 16 18)

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

4: (2 12 10)

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