diff --git a/challenge.mctf b/challenge.mctf
index 1570b4e..741f44e 100644
Binary files a/challenge.mctf and b/challenge.mctf differ
diff --git a/src/main.rs b/src/main.rs
index 13e8b09..69ed0a1 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -17,6 +17,7 @@ struct Machine {
     SMAIN: Vec<u16>,
     SCODE: Vec<u16>,
     IP: u16,
+    input: Vec<u8>,
 }
 
 impl Machine {
@@ -272,6 +273,7 @@ impl Default for Machine {
             RX: 0,
             RY: 0,
             RZ: 0,
+            input: vec![],
         }
     }
 }
@@ -517,6 +519,8 @@ impl Machine {
                 let a = self.read(ci.args[0]);
                 let b = self.read(ci.args[1]);
 
+                eprintln!("CMP({}, {})", a, b);
+
                 self.RSTAT.set(Flags::FZERO, a == 0 || b == 0);
                 self.RSTAT.set(Flags::FEQUL, a == b);
                 self.RSTAT.set(Flags::FLT, a < b);
@@ -546,11 +550,7 @@ impl Machine {
                 self.RSTAT.set(Flags::FZERO, val == 0);
             }
             OP::READ => {
-                let mut input = 0;
-                std::io::stdin().read(&mut [input]).unwrap();
-
-                if input == b'~' { input = 0; }
-
+                let input = self.input.remove(0);
                 self.write(ci.args[0], input as u16);
                 self.RSTAT.set(Flags::FZERO, input == 0);
             }
@@ -658,6 +658,7 @@ fn main() {
     let mut m = Machine::default();
     m.SIN[1..=sin.inner().len()].copy_from_slice(sin.inner());
     m.SCODE[1..=code.inner().len()].copy_from_slice(code.inner());
+    m.input = b"\x0a".to_vec();
 
 //    dump_instructions(&m.SCODE[1..=code.inner().len()]);