//ww:run-exit 100
// Migrated from 700_e2e row 22.
package main;
fn main() i32 = {
  let arr: [4]i64;
  arr[0] = 10; arr[1] = 20; arr[2] = 30; arr[3] = 40;
  let sum: i64 = 0;
  let i: i32 = 0;
  for (i < 4) { sum += arr[i]; i += 1; };
  return sum: i32;
};