package main
import (
	"errors"
	"fmt"
)
 
func tekaTekiTeko(batas uint) error {
	if batas < 20 {
		return errors.New("parameter batas harus bernilai minimal 20")
	}
 
	for i := uint(1); i <= batas; i++ {
		output := ""
 
		if i%2 == 0 {
			output += "Teka"
		}
		if i%3 == 0 {
			output += "Teki"
		}
		if i%5 == 0 {
			output += "Teko"
		}
 
		if output == "" {
			fmt.Println(i)
		} else {
			fmt.Println(output)
		}
	}
 
	return nil
}
 
 
 
func main(){
	if err := tekaTekiTeko(30); err != nil {
		fmt.Println("Error:", err)
	}
}

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