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

using namespace std;

void Citire(char* s)
{
    ifstream fin("text.in");
    fin.getline(s, 999);
    fin.close();
}

void ElimVoc(char* s)
{
    int nr = strlen(s);
    char voc[] = "aeiou", *p;
    p = strtok(s, voc);
    while(p != NULL)
    {
        p = strtok(NULL, voc);
    }
    for(int i = 0; i < nr; i++)
        if(s[i] != 0) cout << s[i];

}

void SchLit(char* s)
{
    int i = 0, lM = 1;
    while(s[i] != 0)
    {
        if(s[i] == ' '){ lM = 1; i++; }
        if(lM == 1)
        {
            if(s[i] >= 97) s[i] -= 32;
            lM = 0;
        }
        else
            if(s[i] < 97) s[i] += 32;
        i++;
    }
}

int SumCif(char* s)
{
    int i = 0, sm = 0;
    char cuv[100][100], *p;
    p = strtok(s, " ");
    while(p != NULL)
    {
        strcpy(cuv[i], p); i++;
        p = strtok(NULL, " ");
    }
    for(int j = 0; j <= i; j++)
    {
        if(cuv[j][0] >= 48 && cuv[j][0] <= 57) sm += atoi(cuv[j]);
    }
    return sm;
}

void Secv(char* s)
{
    int a, amx, b, bmx, lg, mx, i, lM;
    a = b = mx = lg = i = lM = 0;
    if(s[i] <= 90) lM = 1;
    while(s[i] != 0)
    {
        if(lM == 0)
        {
            if(lg > mx)
            {
                amx = a;
                bmx = b;
            }
            lg = 0;
            a = b = i+1;
        }
        else
        {
            lg++;
            b++;
        }
        if(s[++i] <= 90) lM = 1;
        else lM = 0;
    }
    for(int cuv = amx; cuv < bmx; cuv++)
        cout << s[cuv];
}
int main()
{
    char s[1000];
    Citire(s);
    cout << s << "\n";

    //1
    /*
    ElimVoc(s);
    */

    //2
    /*
    SchLit(s);
    cout << s << "\n";
    */


    //4
    /*
    cout << SumCif(s);
    */

    //5
    /*
    Secv(s);
    */
    return 0;
}