diff --git a/src/tasks/day21.rs b/src/tasks/day21.rs
index 2e39705..bb8e125 100644
--- a/src/tasks/day21.rs
+++ b/src/tasks/day21.rs
@@ -1,5 +1,6 @@
 use super::day05::*;
 
+#[allow(dead_code)]
 pub fn run() {
     let input = std::fs::read_to_string("input/day21.txt").unwrap();
     let ram: RAM = input
@@ -7,7 +8,7 @@ pub fn run() {
         .enumerate()
         .map(|(i, s)| (i, s.parse::<i128>().unwrap()))
         .collect();
-    task1(ram.clone());
+    task2(ram.clone());
 }
 
 fn task1(ram: RAM) {
@@ -23,6 +24,29 @@ WALK
     play(ram.clone(), p);
 }
 
+fn task2(ram: RAM) {
+    // jump if NOT(A and B and C) and D and (H or (E and I) or (E and F))
+    let p = r"OR H J
+OR E T
+AND I T
+OR T J
+NOT E T
+NOT T T
+AND F T
+OR T J
+AND D J
+NOT A T
+NOT T T
+AND B T
+AND C T
+NOT T T
+AND T J
+RUN
+"
+    .to_string();
+    play(ram.clone(), p);
+}
+
 fn play(ram: RAM, program: String) {
     let mut computer = IntCodeComputer::new(program.chars().map(|c| c as i128).collect(), ram);
     computer.run_until_end();