C313131323331311331322331322331311211331323331322331323133313231333131211   >>    C31313132333131133132233132233131121133132333132233132313331323133313121   <<    C313131323331311331322331322331311211331323331322331323133313231333131213   >>      C313131323331311331322331322331311211331323331322331323133313231333131212   >>