let mut count = 1 while count <= 15 { let divides_by_3 = count % 3 == 0 let divides_by_5 = count % 5 == 0 let output = if divides_by_3 && divides_by_5 { "fizzbuzz" } else if divides_by_3 { "fizz" } else if divides_by_5 { "buzz" } else { string(count) } write_line(output) count += 1 }