C111113331333133312112113313331333133313231333133313331311333121   >>    C11111333133313331211211331333133313331323133313331333131133312   <<    C111113331333133312112113313331333133313231333133313331311333123   >>      C111113331333133312112113313331333133313231333133313331311333122   >>