//ww:run-exit 0
// Migrated from 700_e2e row 20.
package main;
import os;
import rt;
fn main() i32 = {
  let p: *void = rt.malloc(4096u64);
  if (p == nil) { return 1; };
  let bp: *u8 = p: *u8;
  bp[0] = 65u8;
  os.write(1, bp, 1u64);
  os.free(p, 4096u64);
  return 0;
};