Just put the number and let the cat do the work! Also if the sequence to the loop is too long it will break. Also btw this was made a long time ago I just saw carykh’s video on this topic and remembered about this.
The Collatz conjecture is one of the most famous unsolved problems in mathematics. If a number is odd it gets multiplied by 3 and added by 1, if a number is even it gets divided by 2. You repeat this until you find a loop, there are only very little loops found, most of them being negative numbers. But the 4-2-1 loop is the most known.