C131312213233313231313231323232132313231313232233132333132333132321123233311   >>    C13131221323331323131323132323213231323131323223313233313233313232112323331   <<    C131312213233313231313231323232132313231313232233132333132333132321123233313   >>      C131312213233313231313231323232132313231313232233132333132333132321123233312   >>