View Code of Problem 43

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

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