The answer to this question is: hook 7 strands, 24 strings, 25 strings.

In mathematical pythagorean theorem, these natural numbers have many combinations, such as:

Hook 3 strands, 4 strings, 5 strands 12 strings 13,

Hook 7 strands with 24 strings and 25 strands, hook 8 strands 15 strings 17.

Hook 9 strands with 40 strings 4 1, hook 1 1 strands with 60 strings 6 1.

..... the formula is tick? +shares? = string?