"Recursive Circus" - Day 7 - AoC 2017 adventofcode.com/2017/day/7#AdventOfCode
The example is rather confusing. It seems like all branches must have equal weight. The same goes for subbranches. Here 66*3+45 = 57*3+72 = 243. But 61*3+68=251, so it's not balanced. Is it a bug?