#include<iostream>
#include<fstream>
#include<algorithm>
#include<vector>
#include<cmath>
#define bigint long long unsigned int
using namespace std;
bigint base(int a , int b)
{
bigint t=0;
bigint l = 0;
int n=0,r[100];
while(a)
{
r[n] = a % b;
a /= b;
n++;
}
for(int i=0;i<n;i++)
{
t += ((r[i])*pow(10,i));
}
return t;
}
int main()
{
cout<< base(1025,15);
return 0;
}
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