// Phase 113: if-only partial assign (preserve merge on else side)

static box Main {
  main() {
    local x
    local flag

    // First call: flag=0 → x stays 1 → print 1
    flag = 0
    x = 1
    if flag == 1 {
      x = 2
    }
    // else側は暗黙の "保持" (x keeps original value)
    print(x)

    // Second call: flag=1 → x becomes 2 → print 2
    flag = 1
    x = 1
    if flag == 1 {
      x = 2
    }
    print(x)

    return "OK"
  }
}