#include <iostream>
using namespace std;

struct muzik
{
    char familiya[20];
    int god;
    char country[20];
    char instr[20];

}*info;

void in(int);
void out(int);
int task(char,int,int,int );

int main()
{
    int n;
    int i;
    int count = 0;
    char inst[20];
    cout << "vvedite kol=vo uchastnikov ";
    cin >> n;
    info = new muzik[n];
    in(n);
    for ( i = 0; i < n; i++)
    {
        out(i);
    }
    cout << " vvedine instrument "; cin>> inst;



    cout << " kol-vo uchastnikov po zadannomu instrumentu " << task( *inst,  count,  i,  n);
    cout << "\n\n";


    delete[]info;
}

void in(int n)
{
    for ( int i = 0; i < n; i++)
    {
        cout << "familiya "; cin >> (info + i)->familiya;
        cout << " god rozhdeniya "; cin >> (info + i)->god;
        cout << " strana "; cin >> (info + i)->country;
        cout << " instrument "; cin >> (info + i)->instr;
    }
    cout << "\n\n";
}
void out(int i)
{
    cout << "\n\n";
    cout << " familiya->" << (info + i)->familiya << "\t\t god rozhdeniya->" << (info + i)->god << "\t\t strana->" << (info + i)->country << "\t\t instrument->" << (info + i)->instr << endl;
}
int task(char inst,int count,int i,int n)
{
    for(i=0;i<n;i++)
        if (*(info+i)->instr==inst)
        {
            count++;
            out(i);
        }

    return count;
}