let a = 14; let m = 48; let mut u = 0; u = { a + m }; let mut z: I32; z = { z = 48; { z = 672; }; z / 2 }; let mut x = 0; while x < 50 { x = x + 1 }; x = x + u; z = x - u; x = z + u; x