C11111211113313112113313331333133312111113331333133313332233323231   >>    C1111121111331311211331333133313331211111333133313331333223332323   <<    C11111211113313112113313331333133312111113331333133313332233323233   >>      C11111211113313112113313331333133312111113331333133313332233323232   >>