C111123313331323113313331323133313331311331311331333131333133321311   >>    C11112331333132311331333132313331333131133131133133313133313332131   <<    C111123313331323113313331323133313331311331311331333131333133321313   >>      C111123313331323113313331323133313331311331311331333131333133321312   >>