function mail(input){
let path = /(^|(?<=\s))(([a-zA-Z0-9]+)([\.\-_]?)([A-Za-z0-9]+)(@)([a-zA-Z]+([\.\-][A-Za-z]+)+))(\b|(?=\s))/g
input.match(path).forEach(element => {console.log(element)
});
}