You cannot select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

16 lines
334 B
JavaScript

var num=window.prompt();
var str = num.toString();
var result = [str[0]];
for(var x=1; x<str.length; x++)
{
if((str[x-1]%2 === 0)&&(str[x]%2 === 0))
{
result.push('-', str[x]);
}
else
{
result.push(str[x]);
}
}
console.log(result.join(''));