Test 1.
stdin: PPM RAW 227 149 3 255 RGB
stdin: PPM RAW 227 149 3 255 RGB
Test 2.
57 59
57 59
Test 3. Should print 281226646 481
281226646 481
Test 4. Should print 639729144 101484
639729144 101484
Test 5. Should print 3278353642 685
3278353642 685