$\mathbf{1}: [1, -, -]$ (FAULT)
$\mathbf{2}: [1, 2, -]$ (FAULT)
$\mathbf{1}: [2, 1, -]$ (HIT $- ~1$ moves to most recent)
$\mathbf{3}: [2, 1, 3]$ (FAULT)
$\mathbf{7}: [1, 3, 7]$ (FAULT $- ~2$ was LRU)
$\mathbf{4}: [3, 7, 4]$ (FAULT $- ~1$ was LRU)
$\mathbf{1}: [7,4,1]$ (FAULT $- ~3$ was LRU)
$\mathbf{2}: [4,1,2]$ (FAULT $- ~7$ was LRU)
$\mathbf{1}: [4,2,1]$ (HIT)
Total Faults$\mathbf{: 7}$
