diff --git a/truffle/contracts/Lazy.sol b/truffle/contracts/Lazy.sol
index 404b215..87cf7af 100644
--- a/truffle/contracts/Lazy.sol
+++ b/truffle/contracts/Lazy.sol
@@ -19,6 +19,9 @@ contract Lazy is Structs {
     }
     
     Task[] public tasks;
+    function tasksNum() external view returns(uint) {
+        return tasks.length;
+    }
     
     uint256 public stake;
     IVerifier public verifier;
@@ -65,6 +68,28 @@ contract Lazy is Structs {
         msg.sender.transfer(stake);
     }
 
+    function taskDataById(uint id) external view returns(
+            uint[13] memory data
+            ) {
+        Task memory task = tasks[id];
+        
+        data[0] = task.data.input[0];
+        data[1] = task.data.input[1];
+        data[2] = task.data.input[2];
+        data[3] = task.data.input[3];
+        data[4] = task.data.input[4];
+        
+        data[5] = task.proof.a[0];
+        data[6] = task.proof.a[1];
+        
+        data[7] = task.proof.b[0][0];
+        data[8] = task.proof.b[0][1];
+        data[9] = task.proof.b[1][0];
+        data[10] = task.proof.b[1][0];
+        
+        data[11] = task.proof.c[0];
+        data[12] = task.proof.c[1];
+    }
 
 
     function last5Timestamps() view external returns (uint256[5] memory result) {