C11111211113313112113313331333133313331333132313331333133313331311132212331   >>    C1111121111331311211331333133313331333133313231333133313331333131113221233   <<    C11111211113313112113313331333133313331333132313331333133313331311132212333   >>      C11111211113313112113313331333133313331333132313331333133313331311132212332   >>