Aiming at B0 --> (D0 --> KS0 pi+ pi-) pi+ pi- using the following strippings
B0 --> (D0 --> KS0 pi+ pi-) pi+ pi-
B02D0KPiD2KSHHDDBeauty2CharmLine B02D0KPiD2KSHHDDWSBeauty2CharmLine B02D0KPiD2KSHHLLBeauty2CharmLine B02D0KPiD2KSHHLLWSBeauty2CharmLine
and using run1&run2 data and 11166117 MC samples