#include <iostream>
#include<string.h>
using namespace std;


void IdenficatorsToUpper(char *str)
{
    if (str[0] >='a' && str[0]<='z')
    {
        int codeChar, codeInt;
        char upper;
        codeInt = static_cast<int>(str[0]);
        codeChar = codeInt - 32;
        upper = static_cast<char>(codeChar);
        str[0] = upper;
        for (int j = 0; j <= strlen(str); j++)
        {
            cout << str[j];
        }
        cout << endl;
    }
    else if (str[0]== '_')
    {
        cout << str << endl;
    }
    else
    {
        cout << str << endl;
    }
}

int main()
{
    int bufferSize = 50;
    char *str = new char[bufferSize];
    cout << "Enter string: ";
    cin.getline(str, bufferSize);

    char arr[] = " ";
    char* ptr=strstr(str,arr);
    if (ptr==0)
    {
        IdenficatorsToUpper(str);
    }
    else
    {
        cout << "Wrong string\n";
    }


    delete[]str;
    system("pause");
    return 0;
}