my @paths = data();
my @dirs.push: $_.split('/') for @paths;    # A : @dirs == [(...).Seq, (...).Seq]
say $_.join('/') for @dirs;                 # C : @dirs == [Seq.new-consumed(), Seq.new-consumed()]
my $depth = @dirs.map(*.elems).min;         # D : oops, consumed!