let yearOfBirth = +prompt("enter your year of birth");
let yourAge = 2020-yearOfBirth;
alert("Your age:"+yourAge);


let temperatureCelsius = +prompt("temperature degrees Celsius");
let temperatureFahrenheit = temperatureCelsius * 1.8 + 32;
alert(temperatureFahrenheit);


let numerator= +prompt("enter the numerator");
let denomerator= +prompt("enter the denominator");
alert(Math.floor(numerator/denomerator));


let number= +prompt("enter the number");
if(number % 2==0){
alert("число четное");
}else{
alert("число нечетное");
};

let name = prompt("Enter your name");
alert(`Hey, ${name}!`);
// alert("Hey,"+name+"!"+" How are you?")