Test 1
538848130 235
stdin: PGM RAW 14 16 1 1 GRAYSCALE
538848130 235
stdin: PGM RAW 14 16 1 1 GRAYSCALE
831461512 289
stdin: PAM RAW 14 16 1 1 GRAYSCALE
831461512 289
stdin: PAM RAW 14 16 1 1 GRAYSCALE
Test 2
0 0 : 0
Test Invalid
Expected failure 1 (no output)
Expected failure 2 (no output)