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infile_name = "C:/work_files/libigl/tutorial/shared/male1.mesh"outfile_name = "C:/work_files/libigl/tutorial/shared/male1.mesh.o"string_to_add = " 0"with open(infile_name, 'r') as f:    file_lines = [''.join([x.strip(), string_to_add, '\n']) for x in f.readlines()]with open(outfile_name, 'w') as f:    f.writelines(file_lines)

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