1: (2 7 11)

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

2: (6 20 7)

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

3: (1 13 3)

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

4: (0 18 4)

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