C313131323331311331322331322331311211331323331322331323133313122321   >>    C31313132333131133132233132233131121133132333132233132313331312232   <<    C313131323331311331322331322331311211331323331322331323133313122323   >>      C313131323331311331322331322331311211331323331322331323133313122322   >>