The first line of an input file, called tons.txt, only contains a single number between 1 and 9.
Write a C++ program to input the number of tons from the input file
and print out the equivalent in pounds, ounces, kilograms, and grams, to an output file, called report.txt.
Also, print out the conversion factors to the output file.
You create the input file (tons.txt) to contain a single, positive integer less than 10.
The output file is created by running your program.