C11111211113313112113313331333133313231311331333131333132233222311   >>    C1111121111331311211331333133313331323131133133313133313223322231   <<    C11111211113313112113313331333133313231311331333131333132233222313   >>      C11111211113313112113313331333133313231311331333131333132233222312   >>