#include<iostream>#include<algorithm>#include<string.h>#include<stdio.h>#define max(a,b) (a>b?a:b)#define min(a,b) (a<b?a:b)using namespace std;int n;int ans;char data[15];char prt[10];bool cmp(char a,char b){return a>b;}int calc(int v,int w,int x,int y,int z){return v-w*w+x*x*x-y*y*y*y+z*z*z*z*z;}void solve(){for(int z=1;z<=n;z++){for(int y=1;y<=n;y++){if(y==z)continue;for(int x=1;x<=n;x++){if(x==z||y==x)continue;for(int w=1;w<=n;w++){if(w==z||w==x||w==y)continue;for(int v=1;v<=n;v++){if(v==w||v==z||v==y||v==x)continue;if(calc(data[z]-'A'+1,data[y]-'A'+1,data[x]-'A'+1,data[w]-'A'+1,data[v]-'A'+1)==ans){printf("%c%c%c%c%cn",data[z],data[y],data[x],data[w],data[v]);return ;}}}}}}printf("no solutionn");}int main(){while(scanf("%d%s",&ans,data+1),ans){n=strlen(data+1);sort(data+1,data+1+n,cmp);solve();}return 0;}
