import java.util.*;
class ConsecutiveIntegers{
    private int N;
    private String output;
    private boolean found;
    public ConsecutiveIntegers(int N){
        this.N = N;
        found=false;
        findSum();
    }
    public void findSum(){
        output="";
        int half=N/2;
        for(int beg=1, end=1, sum=1;beg<=half;){
            if(sum<N){
                end+=1;
                sum+=end;
            }else if(sum>N){
                sum-=beg;
                beg+=1;
            }else if(sum==N){
                output+="\t";
                for( int term = beg; term<=end; term++){
                    output+=term;
                    if(term<end) output+=" + ";
                }
                output+="\n";
                found=true;
                sum-=beg;
                beg+=1;
            }
        }
    }
    public String toString(){
        if(found) return output;
        else return "\tNO SOLUTION EXISTS";
    }
}
class ISC2006Q1{
    public static void main(String[] args) {
        Scanner in = new Scanner( System.in );
        System.out.print("INPUT:\tN = ");
        int N = in.nextInt();
        ConsecutiveIntegers obj = new ConsecutiveIntegers(N);
        System.out.println("OUTPUT:\n"+obj);
        in.close();
    }
}