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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
line.strip!
parts = line.split ' ||| '
f_shape = shape(parts[1])
e_shape = shape(parts[2])
next if f_shape[0]=='NT'||f_shape[-1]=='NT'||e_shape[0]=='NT'||e_shape[-1]=='NT'
puts line
end
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