C11111211113313112113313331333133313331333132313331333132323311121   >>    C1111121111331311211331333133313331333133313231333133313232331112   <<    C11111211113313112113313331333133313331333132313331333132323311123   >>      C11111211113313112113313331333133313331333132313331333132323311122   >>