View Code of Problem 43

#include <stdio.h>
#include <string.h>
int main(){
	char a[91];
	while(scanf("%s",a)!=EOF){
		for(int i=0;i<strlen(a);i++){
			if(a[i]>='a'&&a[i]<='z'){
				printf("%c",a[i]);
			}
		}
		printf("\n");
	}
	return 0;
}