https://codeforces.com/contest/1156/problem/B
题解:贪心
/*
*@Author: STZG
*@Language: C++
*/
#include <bits/stdc++.h>
#include<iostream>
#include<algorithm>
#include<cstdlib>
#include<cstring>
#include<cstdio>
#include<string>
#include<vector>
#include<bitset>
#include<queue>
#include<deque>
#include<stack>
#include<cmath>
#include<list>
#include<map>
#include<set>
//#define DEBUG
#define RI register int
#define endl "\n"
using namespace std;
typedef long long ll;
//typedef __int128 lll;
const int N=100000+10;
const int M=100000+10;
const int MOD=1e9+7;
const double PI = acos(-1.0);
const double EXP = 1E-8;
const int INF = 0x3f3f3f3f;
int t,n,m,k,p,l,r,u,v;
int ans,cnt,flag,temp,sum;
int a[30];
char str[N];
struct node{};
int main()
{
#ifdef DEBUG
freopen("input.in", "r", stdin);
//freopen("output.out", "w", stdout);
#endif
//ios::sync_with_stdio(false);
//cin.tie(0);
//cout.tie(0);
scanf("%d",&t);
while(t--){
//scanf("%d",&n);
cin>>str;
int len=strlen(str);
memset(a,0,sizeof(a));
for(int i=0;i<len;i++){
a[str[i]-'a']++;
}
string ans1="",ans2="",ans="";
cnt=0;
for(int i=0;i<26;i+=2){
while(a[i]){
ans1+=(i+'a');
a[i]--;
cnt++;
}
}
for(int i=1;i<26;i+=2){
while(a[i]){
ans2+=(i+'a');
a[i]--;
//cnt++;
}
}
if(ans1.size()>0&&ans2.size()>0){
if(abs(ans1[cnt-1]-ans2[0])!=1){
ans=ans1+ans2;
}else{
ans=ans2+ans1;
}
}else{
if(ans1.size()>0){
ans=ans1;
}else{
ans=ans2;
}
}
flag=1;
for(int i=1;i<len;i++){
if(abs(ans[i-1]-ans[i])==1){
flag=0;
break;
}
}
cout<<(flag?ans:"No answer")<<endl;
}
#ifdef DEBUG
printf("Time cost : %lf s\n",(double)clock()/CLOCKS_PER_SEC);
#endif
//cout << "Hello world!" << endl;
return 0;
}