C212313222213113313112113121111331323132233133313223313331123313113321   >>    C21231322221311331311211312111133132313223313331322331333112331311332   <<    C212313222213113313112113121111331323132233133313223313331123313113323   >>      C212313222213113313112113121111331323132233133313223313331123313113322   >>