1 /*
2 高精度进制加法
3 n为进制（n<=36）
4 */
5 #include<bits/stdc++.h>
6 using namespace std;
7 const int maxn=10000;
8 int n;
9 struct bign{
10 int d[maxn],len;
11 inline bign(){len=1;memset(d,0,sizeof(d));}
12 inline bign operator = (const char* num)
13 {
14 memset(d,0,sizeof(d));
15 len=strlen(num);
16 for(int i=0;i<len;i++)
17 {
18 if(num[len-1-i]>'9') d[i]=10+num[len-i-1]-'A';
19 else d[i]=num[len-i-1]-48;
20 }
21 return *this;
22 }
23 inline bign operator + (const bign &b)
24 {
25 bign c;
26 int x=0,i,lenmax=max(len,b.len);
27 for(i=0;i<lenmax;i++)
28 {
29 c.d[i]=d[i]+b.d[i]+x;
30 x=c.d[i]/n;
31 c.d[i]%=n;
32 }
33 x?c.d[i]=i:i--;
34 c.len=i+1;
35 return c;
36 }
37 inline string str () const
38 {
39 char s[maxn]={};
40 for(int i=0;i<len;i++)
41 {
42 if(d[len-i-1]>9) s[i]='A'+d[len-i-1]-10;
43 else s[i]=d[len-i-1]+48;
44 }
45 return s;
46 }
47 }a,b;
48 inline istream& operator >> (istream &in,bign &x)
49 {
50 char s[maxn]={};
51 in>>s;
52 x=s;
53 return in;
54 }
55 inline ostream& operator << (ostream &out,const bign &x)
56 {
57 out<<x.str();
58 return out;
59 }
60 int main()
61 {
62 cin>>n>>a>>b;
63 cout<<a+b;
64 return 0;
65 }
