import java.util.Scanner;

class Main{
    public static void main(String[] args){
        Scanner sc=new Scanner(System.in);
        int a[]=new int[10],m,t1,t2=0,j;
        String s=new String();
        for(int i=0;i<10;++i){
            m=0;
            for(j=0;j<10;++j){
                a[i]=j;
                for(int k=0;k<10;++k)System.out.print(a[k]);
                System.out.println();
                System.out.flush();
                t1=sc.nextInt();
                s=sc.next();
                if(t1>9)break;
                if(t1>m){
                    m=t1;
                    t2=j;
                }
            }
            if(10>j)break;
            a[i]=t2;
        }
        sc.close();
    }
}