I solved, but the solution is wrong, there is no 60th minute in analog clocks (test case 20). Do not try to use mod until they fix it.
Is the problem proposer serious with the 20th test?
Nice trick with the 222.2 - very clever!
System of equations
Number of Horns on a unicorn!
Solve the Sudoku Row
Square Digits Number Chain Terminal Value (Inspired by Project Euler Problem 92)
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