C111123313331323113313331333133313331323323221333132313231323132333122311   >>    C11112331333132311331333133313331333132332322133313231323132313233312231   <<    C111123313331323113313331333133313331323323221333132313231323132333122313   >>      C111123313331323113313331333133313331323323221333132313231323132333122312   >>