C11111211113313112113313331333133313331333132313331333133313232133322321   >>    C1111121111331311211331333133313331333133313231333133313331323213332232   <<    C11111211113313112113313331333133313331333132313331333133313232133322323   >>      C11111211113313112113313331333133313331333132313331333133313232133322322   >>