C++代码：

#include<bits/stdc++.h>
using namespace std;
string s1,s2;
int a[100005],b[100005],c[100005];
string bi(string s1,string s2)
{
    memset(a,0,sizeof(a));
    memset(b,0,sizeof(b));
    memset(c,0,sizeof(c));
    int len1=s1.size(),len2=s2.size();
    for(int i=0;i<len1;i++)
    {
        a[i]=s1[len1-i-1]-'0';  
    }
    for(int i=0;i<len2;i++)
    {
        b[i]=s2[len2-i-1]-'0';  
    }
    int len=max(len1,len2);
    for(int i=0;i<len;i++)
    {
        c[i]+=a[i]+b[i];
        c[i+1]+=c[i]/10;
        c[i]%=10;
    }
    if(c[len])
    {
        len++;
    }
    string ans="";
    for(int i=len-1;i>=0;i--)
    {
        ans+=c[i]+'0';  
    }
    return ans;
}
int main()
{
    cin>>s1>>s2;
    cout<<bi(s1,s2);
    return 0;
}

py作弊代码

a=input()
b=input()
if(a[0]=='0' and a[1]=='0'):
    print('00',end='')
print(int(a)+int(b)