diff --git a/zkvm/test_methods/guest/src/bin/big_calculation.rs b/zkvm/test_methods/guest/src/bin/big_calculation.rs
new file mode 100644
index 0000000..b546857
--- /dev/null
+++ b/zkvm/test_methods/guest/src/bin/big_calculation.rs
@@ -0,0 +1,14 @@
+use risc0_zkvm::{
+    guest::env,
+};
+
+fn main() {
+    let lhs: u128 = env::read();
+    let rhs: u128 = env::read();
+    let mut res = 1;
+    for i in 0..lhs {
+        res *= rhs;
+        res += lhs;
+    }
+    env::commit(&(res));
+}