1: (1 7 10)

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

2: (0 8 2)

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

3: (1 7 10)

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

4: (6 12 9)

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