C1112212323132313132313132313232233131323231323133313232332313233311   >>    C111221232313231313231313231323223313132323132313331323233231323331   <<    C1112212323132313132313132313232233131323231323133313232332313233313   >>      C1112212323132313132313132313232233131323231323133313232332313233312   >>