C21321133133313121211113313331323133313113121111331323223332231   >>    C2132113313331312121111331333132313331311312111133132322333223   <<    C21321133133313121211113313331323133313113121111331323223332233   >>      C21321133133313121211113313331323133313113121111331323223332232   >>