C11111211113313112113313331333133312111113331333133313332233132332333131   >>    C1111121111331311211331333133313331211111333133313331333223313233233313   <<    C11111211113313112113313331333133312111113331333133313332233132332333133   >>      C11111211113313112113313331333133312111113331333133313332233132332333132   >>