C21321133133313121211113313331323133313231333132233132323323223311   >>    C2132113313331312121111331333132313331323133313223313232332322331   <<    C21321133133313121211113313331323133313231333132233132323323223313   >>      C21321133133313121211113313331323133313231333132233132323323223312   >>