C21321133133313121211113313331323133313231333132233132311211323321   >>    C2132113313331312121111331333132313331323133313223313231121132332   <<    C21321133133313121211113313331323133313231333132233132311211323323   >>      C21321133133313121211113313331323133313231333132233132311211323322   >>