C1313231312311331322331313331323113313233313232222331323131323211   >>    C131323131231133132233131333132311331323331323222233132313132321   <<    C1313231312311331322331313331323113313233313232222331323131323213   >>      C1313231312311331322331313331323113313233313232222331323131323212   >>