View Code of Problem 43

#include <stdio.h>
int main(){
  char a[90];
  int i;
  scanf("%s", a);
  for(i=0;a[i]!='\0';i++){
    if(('a'<=a[i]&&a[i]<='z')||('A'<=a[i]&&a[i]<='Z')){
		printf("%c",a[i]);
    }
  }
}