C11111211113313112113313331333133313133313232233131333131133133321133131   >>    C1111121111331311211331333133313331313331323223313133313113313332113313   <<    C11111211113313112113313331333133313133313232233131333131133133321133133   >>      C11111211113313112113313331333133313133313232233131333131133133321133132   >>