1: (1 5 20)

(0 20 3 21 19 13 5)(1)(2 17 8 6 4)(7 11 9)(10 15 12)(14 18 16)

2: (3 21 19)

(0 20 3 13 5)(1)(2 17 8 6 4)(7 11 9)(10 15 12)(14 18 16)(19)(21)

3: (2 17 4)

(0 20 3 13 5)(1)(2)(4 8 6)(7 11 9)(10 15 12)(14 18 16)(17)(19)(21)

4: (3 13 20)

(0 20 5)(1)(2)(3)(4 8 6)(7 11 9)(10 15 12)(13)(14 18 16)(17)(19)(21)