1: (1 5 8)

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

2: (4 13 7)

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

3: (1 17 10)

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

4: (11 19 14)

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