C313131323331311331322331322331311211331323132311113313231333132333112322121   >>    C31313132333131133132233132233131121133132313231111331323133313233311232212   <<    C313131323331311331322331322331311211331323132311113313231333132333112322123   >>      C313131323331311331322331322331311211331323132311113313231333132333112322122   >>