LIT SQUARER keeps a step only when it is the sum of the squares of the digits. From 7 the kept walk is 7, 49, 97, 130, 10, 1. Five steps are kept and five offers to square the digits each increased by one are dropped. Of the numbers from 1 through 100, twenty reach 1 and eighty reach 4. The five values before 1 sum to 293. A second run must match.
AMBER Happy numbers are a named class. The name is assigned.
WALL The census stops at 100. A number that reaches 4 is not called happy here, and larger starts are not counted.
MODEL One pupil. Six stones follow 7 to 1, and the last stone is the arrival. A step is kept only when it is the sum of the squares of the digits. No cartridge is loaded.
Checking the herald.
Seal sha256(name|slug|blurb): b1162de4bcbccd73ad4698ba480ff2426bdfe153c8c15a5e894f4c12477bcdf8