From Wikipedia, the free encyclopedia:

 A happy number is defined by the following process:
 Starting with any positive integer, replace the number by the sum of the squares of its digits, and repeat the process until the number equals   1   (where it will stay),   or it loops endlessly in a cycle which does not include   1.   


 Those numbers for which this process end in   1   are       happy   numbers,   
 while   those numbers   that   do   not   end in   1   are   unhappy   numbers. 


Task

Find and print the first   8   happy numbers.

Display an example of your output here on this page.



See also

   The OEIS entry:   The     happy numbers:   A007770
   The OEIS entry:   The unhappy numbers;   A031177


func happy(n) {
    var m = []
    while n > 1 {
        m.Add(n)
        var x = n
        n = 0
        while x > 0 {
            var d = x % 10
            n += d * d
            x /= 10
        }
        if m.IndexOf(n) != -1 {
            return false
        }
    }
    return true
}
 
var (n, found) = (1, 0)
while found < 8 {
    if happy(n) {
        print("\(n) ", terminator: "")
        found += 1
    }
    n += 1
}
print()