It was just a typing error , what i want is to replace the first space or the last with a coma :
exp input : 2400 Xrayonten Xaviere 2424224THVStreet,e#
2500 Youngnten Yannire 25252YongeSStreete#
exp output: 2400,Xrayonten,Xaviere,2424224THVStreet,e#...