D1122112312233231312323132322331323221211113313133313131323132313232211   >>    D112211231223323131232313232233132322121111331313331313132313231323221   <<    D1122112312233231312323132322331323221211113313133313131323132313232213   >>      D1122112312233231312323132322331323221211113313133313131323132313232212   >>