40~50

class Main {
    public static void main(String[] args) {
        int num[]={28,69,56,45,15,43,24,42,49,48,43,50};
        int leng=num.length;
        for(int i=0; i<leng; i++){
            if(num[i]>=40&&num[i]<=50)
                System.out.printf("%d ",num[i]);                
        }

    }
}