C11111211113313112113313331333133313331333132313231333133313233112111   >>    C1111121111331311211331333133313331333133313231323133313331323311211   <<    C11111211113313112113313331333133313331333132313231333133313233112113   >>      C11111211113313112113313331333133313331333132313231333133313233112112   >>