normalize

//https://www.facebook.com/CungHocLapTrinhUIT/
#include <stdio.h>

void strNormal(char *str)
{
    int j = 0;
    for (int i = 0; str[i] != 0; i++)
    {
        if (str[i] != ' ')
        {
            if (str[i - 1] == ' ')
            {
                if (str[i] > 96 && str[i] < 123)
                    str[j++] = str[i] - 32;
                else
                    str[j++] = str[i];
            }
            else
            {
                if (str[i] > 64 && str[i] < 91)
                    str[j++] = str[i] + 32;
                else
                    str[j++] = str[i];
            }
        }
        else
        {
            if (i != 0 && str[i - 1] != ' ')
            {
                str[j++] = str[i];
            }
        }
    }
    str[0] = (str[0] > 96 ? str[0] - 32 : str[0]);
    str[j] = 0;
}

void main()
{
    char str[1024];
    gets(str);
    strNormal(str);
    puts(str);
}