1: (1 8 11)

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

2: (4 12 10)

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

3: (2 8 7)

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

4: (3 20 5)

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