View Code of Problem 43

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int main(void)
{
    char str[90];
    gets(str);
    int n = strlen(str),i;
    for(i = 0;i < n;i++)
    {
        if(str[i] >= 'A' && str[i] <= 'z')
            printf("%c",str[i]);
    }
    printf("\n");
    return 0;
}