1 #include<iostream>
2 #include<cstdio>
3 #include<cmath>
4 #include<algorithm>
5 #include<string.h>
6 using namespace std;
7 typedef long long ll;
8 char aa[100010];
9 char bb[100010];
10 int a[1000010], b[100010];
11 int c[10000010];
12 void add(int a[], int b[])
13 {
14 int l = max(a[0], b[0]);
15 for (int i = 1; i <= l; i++)
16 {
17 c[i] = a[i] + b[i];
18 }
19 l++;
20 for (int i = 1; i <= l; i++)
21 {
22 if (c[i] > 9)
23 {
24 c[i + 1]++;
25 c[i] = c[i] - 10;
26 }
27 }
28 while (c[l] == 0 && l > 1)
29 {
30 l--;
31 }
32 for (int i = l; i >= 1; i--)
33 {
34 cout << c[i];
35 }
36 cout << endl;
37 }
38 int main()
39 {
40 scanf("%s", &aa);
41 scanf("%s", &bb);
42 int l1 = strlen(aa);
43 int l2 = strlen(bb);
44 a[0] = l1;
45 b[0] = l2;
46 for (int i = l1; i >=1; i--)
47 {
48 a[i] = aa[l1 - i] - '0';
49 }
50 for (int i = l2; i >= 1; i--)
51 {
52 b[i] = bb[l2 - i] - '0';
53 }
54 add(a, b);
55 return 0;
56 }
