C111123313331323113313331333133313231323221212111133131121132311   >>    C11112331333132311331333133313331323132322121211113313112113231   <<    C111123313331323113313331333133313231323221212111133131121132313   >>      C111123313331323113313331333133313231323221212111133131121132312   >>