C111123313331323113313331333133313331122112312111112111112323132322131   >>    C11112331333132311331333133313331333112211231211111211111232313232213   <<    C111123313331323113313331333133313331122112312111112111112323132322133   >>      C111123313331323113313331333133313331122112312111112111112323132322132   >>