text: var Migrations = artifacts.require("./Migrations.sol");
  var Greeter = artifacts.require("./Greeter.sol");
  var Fibonacci = artifacts.require("./Fibonacci.sol");
  var XOR = artifacts.require("./XOR.sol");
  var Concat = artifacts.require("./Concat.sol");
  
  module.exports = function(deployer) {
    deployer.deploy(Migrations);
    deployer.deploy(Greeter);
    deployer.deploy(Fibonacci);
    deployer.deploy(XOR);
    deployer.deploy(Concat);
  };
  