C313131323331311331322331322331311211331323331313331323132211211331   >>    C31313132333131133132233132233131121133132333131333132313221121133   <<    C313131323331311331322331322331311211331323331313331323132211211333   >>      C313131323331311331322331322331311211331323331313331323132211211332   >>