diff --git a/src/libs/zelu.ts b/src/libs/zelu.ts
new file mode 100644
index 0000000..6ebaee1
--- /dev/null
+++ b/src/libs/zelu.ts
@@ -0,0 +1,35 @@
+import {
+    Field,
+    Mina,
+    PrivateKey,
+    AccountUpdate,
+    SelfProof,
+    ZkProgram,
+    Struct,
+    Bool,
+    Circuit,
+    Poseidon,
+    MerkleMap,
+    MerkleTree,
+    MerkleWitness,
+    MerkleMapWitness,
+    verify,
+    Provable,
+  } from 'o1js';
+
+  const Zelu = ZkProgram({
+    name: 'Zelu',
+    publicOutput: Field,
+  methods: {
+    zelu: {
+      privateInputs: [Field, Field],
+  
+      method(input, remainder): Field {
+        const n = Field(1000000000); // Assuming n is 10^9
+        remainder.assertLessThan(n);
+        let tmp = input.square().add(input.mul(n));
+        return tmp.sub(remainder).div(n);
+    },
+  },
+  },
+  });
\ No newline at end of file