POJ 1781

#include <iostream>
#include <string>
#include <cmath>
using namespace std;
unsigned fun(unsigned num);
int main()
{
    //freopen("acm.acm","r",stdin);
    string s;
    unsigned num;
    unsigned i;
    while(cin>>s,s != "00e0")
    {
        num = ;
        num += (s[]-'')*;
        num += s[]-'';
        num *= pow((double),(double)(s[]-''));
        i = fun(num);
//        cout<<i<<"  **********8  "<<endl;
    //    cout<<"num "<<num<<endl;
    //            cout<<i<< "    8888888888888888 "<<endl;
        i = -(-pow((double),double(i-)));
        num -= i;
        unsigned j = ;
    //    cout<<"num  "<<num<<endl;
        for(i = ; i < num-; ++ i)
        {
            j += ;
        //    cout<<j<<" ";
        }
    //    cout<<endl;
        cout<<j<<endl;
    }
}

unsigned fun(unsigned num)
{
    unsigned i = ;
    unsigned sum;
    sum = -(-pow((double),(double)(i-)));
    while(sum < num)
    {
        ++ i;
        sum = -(-pow((double),double(i-)));
    }
    return i-;
}

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