# mttmin  mttmax  applgrid                                                              nbins
   340.0   400.0  datafiles/lhc/cms/topProduction/1703.01630/grids/ttbar_mtt1_ytt.root      4
   400.0   500.0  datafiles/lhc/cms/topProduction/1703.01630/grids/ttbar_mtt2_ytt.root      4
   500.0   650.0  datafiles/lhc/cms/topProduction/1703.01630/grids/ttbar_mtt3_ytt.root      4
   650.0  1500.0  datafiles/lhc/cms/topProduction/1703.01630/grids/ttbar_mtt4_ytt.root      4