C111113331333132322331333133313331311331323133112113313112113311213121   >>    C11111333133313232233133313331333131133132313311211331311211331121312   <<    C111113331333132322331333133313331311331323133112113313112113311213123   >>      C111113331333132322331333133313331311331323133112113313112113311213122   >>