var calculator = require('./calc');
var x = 45,y = 10;
console.log("Addition of 4 and 10"+calculator.add(x,y));
console.log("Subtraction of 4 and 10"+calculator.sub(x,y));
console.log("Multiplication of 4 and 10"+calculator.mult(x,y));
console.log("Division of 4 and 10"+calculator.div(x,y));