C11111211113313112113313331333133313331333132313331333133313331333133312122111   >>    C1111121111331311211331333133313331333133313231333133313331333133313331212211   <<    C11111211113313112113313331333133313331333132313331333133313331333133312122113   >>      C11111211113313112113313331333133313331333132313331333133313331333133312122112   >>