My solutions in the two languages produce the same output on my tests. However, the Go version gets WA1. Please fix this.

#include<iostream>
#include <stdio.h>
#include <stdlib.h>
#include <string>
using namespace std;
int main()
{
    long  l;
    string a,b;
    cin>>a;
    l=a.length();
    if((l>=10)&&(l<=189))
    {
        b=a.substr(l-2,2);

    }
    else if((l>=190)&&(l<=2700))
    b=a.substr(l-3,3);
    else if((l<=2701)&&(l<=36000))
    b=a.substr(l-4,4);
    else
    b=a.substr(l-5,5);
    cout<<"//CPP"<<endl;
    cout<<"#include<iostream.h>"<<endl;
    cout<<"int main()"<<endl;
    int i = atoi(b.c_str());
    cout<<"{for(int i=1;i<"<<i+1<<";i++)cout<<i;return 0;}";
    return 0;
}