C11111211113313112113313331333133313331333132212111133133313331323131121331   >>    C1111121111331311211331333133313331333133313221211113313331333132313112133   <<    C11111211113313112113313331333133313331333132212111133133313331323131121333   >>      C11111211113313112113313331333133313331333132212111133133313331323131121332   >>