poj2996 Help Me with the Game

/*    poj2996
 *    id:    symons
 *    memory 700k
 *    time   0ms
 */
#include <iostream>
#include <string>
#include <algorithm>
#include <stdio.h>
using namespace std;

string gird[17];

void output_white(char aim)
{
    int l=gird[0].length();

    for(int i=16;i>=0;--i)
    {
        for(int j=0;j<l;++j)
        {
            if(gird[i][j]==aim)
            {
                char temp;
                temp=j/4+'a';
                if(aim=='K')
                    cout<<aim<<temp<<(16-i)/2+1;
                else if(aim=='P')
                    cout<<","<<temp<<(16-i)/2+1;
                else 
                    cout<<","<<aim<<temp<<(16-i)/2+1;
            }
        }
    }
    return ;
}
void output_black(char aim)
{
    int l=gird[0].length();

    for(int i=0;i<17;++i)
    {
        for(int j=0;j<l;++j)
        {
            if(gird[i][j]==aim)
            {
                char temp;
                char change;
                change=aim-'a'+'A';
                temp=j/4+'a';
                if(aim=='k')
                    cout<<change<<temp<<(16-i)/2+1;
                else if(aim=='p')
                    cout<<","<<temp<<(16-i)/2+1;
                else
                    cout<<","<<change<<temp<<(16-i)/2+1;
            }
        }
    }
    return ;
}

int main()
{
    while(cin>>gird[0])
    {
        for(int i=1;i<=16;++i)
        {
            cin>>gird[i];
        }
        cout<<"White: ";
        output_white('K');
        output_white('Q');
        output_white('R');
        output_white('B');
        output_white('N');
        output_white('P');
        cout<<endl;
        cout<<"Black: ";
        output_black('k');
        output_black('q');
        output_black('r');
        output_black('b');
        output_black('n');
        output_black('p');
        cout<<endl;
    }
    return 0;
}