import java.util.ArrayList;
import java.util.Scanner;

public class Test {
    public static void main(String[] args){
        Test test = new Test();
        test.combineOperators();
        Scanner scanner = new Scanner(System.in);

        int result = scanner.nextInt();       //get input
        int[] numbers = new int[5];
        for(int i = 0; i <5; i++){
            numbers[i] = scanner.nextInt();
        }

        ArrayList<Integer> results = test.operationsOnArrays(numbers, test.combineOperators());         //check for results
        if(results.contains(result)){
            System.out.println(result + " is a possible solution");
        }else{
            System.out.println(result + " is not a possible solution");
        }

    }
    public ArrayList<String[]> combineOperators(){             //create all possible combinations of operators
        String[] signs = {"+","-","*"};
        ArrayList<String[]> combinations = new ArrayList<String[]>();
        for(String a : signs){
            for (String b : signs){
                for(String c : signs){
                    for(String d: signs){
                            String[]temp = {a,b,c,d};
                            combinations.add(temp);
                    }
                }
            }
        }
        return  combinations;
    }

    public ArrayList operationsOnArrays(int[] num, ArrayList<String[]> combinations){   //do the math with every combination on given ints
        ArrayList<Integer> list = new ArrayList<Integer>();
        for(String[] operators : combinations){         //for every operators combination
            int result = num[0];
            for(int i = 0; i<=3 ; i++){
                result = doTheMath(operators[i],result,num[i+1]);      // take two ints and operator
            }
            list.add(result);
        }
        return list;
    }

    public int doTheMath(String operator, int prev, int next){   // it take two ints from input array, and do operation
        if(operator.equals("+")){                                // determined by a taken operator
            return prev + next;
        }else  if(operator.equals("-")){
            return prev - next;
        }else if(operator.equals("*")){
            return prev  *next;
        }
        return 0;
    }
}