C11111211113313112113313331333133313331333132212113313331323111   >>    C1111121111331311211331333133313331333133313221211331333132311   <<    C11111211113313112113313331333133313331333132212113313331323113   >>      C11111211113313112113313331333133313331333132212113313331323112   >>