C13131221323331323131323132323213231323131323223313233313232233131111231   >>    C1313122132333132313132313232321323132313132322331323331323223313111123   <<    C13131221323331323131323132323213231323131323223313233313232233131111233   >>      C13131221323331323131323132323213231323131323223313233313232233131111232   >>