View Code of Problem 43

#include<stdio.h>
int main()
{
	char s1[90],s2[90];
  	gets(s1);
  	int k=0;
  	for(int i=0;s1[i]!='\0';i++)
        {
        	if((s1[i]>='a'&&s1[i]<='z')||(s1[i]>='A'&&s1[i]<='Z'))
                {
                	s2[k++]=s1[i];
                }
        }
  	s2[k]='\0';
  	puts(s2);
  	return 0;
}