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Count the number of 9's in the sequence that are immediately preceded by 5 but not immediately followed by 7: 5 9 6 8 2 8 8 5 9 7 5 3 9 8 5 9 4 7 3 8 5 9 4 8 9 0 6 5 9 3 8 0 2
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Solution: Step 1: Scan the sequence for '5 9' Step 2: Check if '9' is followed by '7' Step 3: Identify valid groups: 5 9 (not followed by 7) Step 4: Count valid occurrences: 5 9 7, 5 9 4, 5 9 4, 5 9 3 Step 5: Total valid counts = 4
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