C111123313331323113313331333133313331323133113313331333132213331323223212321   >>    C11112331333132311331333133313331333132313311331333133313221333132322321232   <<    C111123313331323113313331333133313331323133113313331333132213331323223212323   >>      C111123313331323113313331333133313331323133113313331333132213331323223212322   >>