1: (0 2 15)

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

2: (1 21 3)

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

3: (2 17 4)

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

4: (13 19 16)

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