C111123313331323113313331323133313331311331311331333132313232332332111112311   >>    C11112331333132311331333132313331333131133131133133313231323233233211111231   <<    C111123313331323113313331323133313331311331311331333132313232332332111112313   >>      C111123313331323113313331323133313331311331311331333132313232332332111112312   >>