C111123313331323113313331333133313331122112312111111331323132311111   >>    C11112331333132311331333133313331333112211231211111133132313231111   <<    C111123313331323113313331333133313331122112312111111331323132311113   >>      C111123313331323113313331333133313331122112312111111331323132311112   >>