C312111333131323132313233313131323132313132322331323331323331323331323221111231   >>    C31211133313132313231323331313132313231313232233132333132333132333132322111123   <<    C312111333131323132313233313131323132313132322331323331323331323331323221111233   >>      C312111333131323132313233313131323132313132322331323331323331323331323221111232   >>