1 #include <iostream>
2 #include <stack>
3 #include <cstring>
4
5 using namespace std;
6
7 char target[10000];
8 char source[10000];
9 int arr[10000];
10
11 int main()
12 {
13 stack<char>s;
14 int n;
15 while(cin>>n)
16 {
17 while(!s.empty())
18 s.pop();
19 memset(arr,0,sizeof(arr));
20 cin>>source;
21 cin>>target;
22 int t1=0;
23 int t2=0;
24 int flag=1;
25 int tt=1;
26 while(t1<n)
27 {
28 if(source[t2]==target[t1])
29 {
30 arr[tt]=1;
31 tt++;
32 arr[tt]=2;
33 tt++;
34 t1++;
35 t2++;
36 }
37 else if(!s.empty()&&s.top()==target[t1])
38 {
39 arr[tt]=2;
40 tt++;
41 s.pop();
42 t1++;
43 }
44 else if(t2<n)
45 {
46 s.push(source[t2]);
47 arr[tt]=1;
48 tt++;
49 t2++;
50 }
51 else
52 {
53 flag=0;
54 break;
55 }
56 }
57 if(tt==2*n+1)
58 {
59 cout<<"Yes.\n";
60 for(int i=1;i<tt;i++)
61 {
62 if(arr[i]==1)
63 cout<<"in\n";
64 if(arr[i]==2)
65 cout<<"out\n";
66 }
67 cout<<"FINISH\n";
68 }
69 else
70 {
71 cout<<"No.\n";
72 cout<<"FINISH\n";
73 }
74 }
75 return 0;
76 }
