C11112331333132311331333133313231333131133131211113313132313232232321   >>    C1111233133313231133133313331323133313113313121111331313231323223232   <<    C11112331333132311331333133313231333131133131211113313132313232232323   >>      C11112331333132311331333133313231333131133131211113313132313232232322   >>