C131312213233313231313231323232132313231313232233132333132322131323132313221   >>    C13131221323331323131323132323213231323131323223313233313232213132313231322   <<    C131312213233313231313231323232132313231313232233132333132322131323132313223   >>      C131312213233313231313231323232132313231313232233132333132322131323132313222   >>