View Code of Problem 43

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