C111123313331323113313331333133313331122112312111133132233131321   >>    C11112331333132311331333133313331333112211231211113313223313132   <<    C111123313331323113313331333133313331122112312111133132233131323   >>      C111123313331323113313331333133313331122112312111133132233131322   >>