// Phase 161 Representative Function 3: Nested If Inside Loop
// Pattern: If statement nested inside loop generating multiple PHI instructions
// Tests: Complex PHI detection, nested block analysis, mixed if/loop patterns

box Main {
    main() {
        local i = 0
        local sum = 0

        loop(i < 10) {
            if i % 2 == 0 {
                sum = sum + i
            } else {
                sum = sum - i
            }
            i = i + 1
        }

        print(sum)
    }
}