C11111211113313112113313331333133312111113331333133313332233132322131   >>    C1111121111331311211331333133313331211111333133313331333223313232213   <<    C11111211113313112113313331333133312111113331333133313332233132322133   >>      C11111211113313112113313331333133312111113331333133313332233132322132   >>