use std.io

count = 1

while count <= 15 {
	divides_by_3 = count % 3 == 0
	divides_by_5 = count % 5 == 0

	output = if divides_by_3 && divides_by_5 { 
		'fizzbuzz'
	} else if divides_by_3 { 
		'fizz'
	} else if divides_by_5 {
		'buzz'
	} else {
		count as str
	}

	io.write_line(output)
	
	count += 1
}