# place " at begin of each line# escape existing '\' and '"'# remove \n at the end of the line (sometimes the last line does not have a \n# so we cannot do a replacement with some other text)# place an escaped \n and " at the end of each lineimportsysforlineinsys.stdin:sys.stdout.write('"'+line.replace('\\','\\\\').replace('"','\\"').replace('\n','')+'\\n"\n')