var 2

#include <iostream>
#include <fstream>
#include <cstring>
#include <cstdlib>

using namespace std;

void fill_matrix()
{
    unsigned int a[5][7];
    for(unsigned int i = 0; i < 7; i++)
        a[0][i] = 1;
    for(unsigned int i = 0; i < 5; i++)
        a[i][0] = 1;

    for(unsigned int i = 1; i < 5; i++)
        for(unsigned int j = 1; j < 7; j++)
            a[i][j] = (a[i-1][j] + a[i][j-1]) % 10;

    for(unsigned int i = 0; i < 5; i++)
    {
        for(unsigned int j = 0; j < 7; j++)
            cout << a[i][j] << " ";
        cout << "\n";
    }
}

void fii(unsigned int n)
{
    for(unsigned int a = n; a * a > n; --a)
    {
        if(n % a == 0)
        {
            unsigned int b = n / a;
            cout << "(" << a << " " << b << ") ";
        }
    }
}

void elim_neg()
{
    char sir[101];
    cin.get(sir, 101);
    cin.get();
    for(unsigned int i = 1; i < strlen(sir); ++i)
    {
        if(sir[i-1] == '-' && sir[i] >= '0' && sir[i] <= '9')
        {
            while((sir[i] >= '0' && sir[i] <= '9') || sir[i] == ',')
                strcpy(sir + i, sir + 1 + i);
            strcpy(sir + i, sir + 1 + i);
            strcpy(sir - 1 + i, sir + i);
        }
    }
    cout << sir;
}

void max_3_20()
{
    unsigned int max1, max2, max3, x;
    max1 = max2 = max3 = 0;
    ifstream f("bac.in");
    while (f >> x)
    {
        if (x % 100 == 20)
        {
            if (x > max1)
                max1 = x;
            else if (x > max2)
                max2 = x;
            else if (x > max3)
                max3 = x;
        }
    }
    cout << max3 << " " << max2 << " " << max1;
}

int main()
{
    fill_matrix();
    fii(100);
    elim_neg();
    max_3_20();
    return 0;
}