D23112331322331313231323331313132322331323211331313233231311211   >>    D2311233132233131323132333131313232233132321133131323323131121   <<    D23112331322331313231323331313132322331323211331313233231311213   >>      D23112331322331313231323331313132322331323211331313233231311212   >>