C212313222213113313112113121111331323132233133313221211111133133323232131   >>    C21231322221311331311211312111133132313223313331322121111113313332323213   <<    C212313222213113313112113121111331323132233133313221211111133133323232133   >>      C212313222213113313112113121111331323132233133313221211111133133323232132   >>