a[10],s[9],c;i,k;
o(){for(k=0;k<10;)printf("%d",a[k++]);fflush(!puts(""));gets(s);return atoi(s);}
main(){
	for(c=o();c<10;c++,i++)for(;o(a[i]++)<=c;a[i]>8?c+=a[i]=-1:0);
}