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#!/usr/bin/env ruby
STDIN.set_encoding 'utf-8'
STDOUT.set_encoding 'utf-8'
def shape s
res = []
in_t = false
s.split.each { |i|
if i.match(/\A\[X,\d\]\z/)
if in_t
in_t = false
end
res << "NT"
next
else
res << "T" if not in_t
in_t = true
end
}
return res
end
while line = STDIN.gets
f, e = line.split(/\t/)
f.strip!; e.strip!
puts shape(f).join('_')+"-"+shape(e).join('_')
end
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