View Code of Problem 3924

#include<stdio.h>
#include<string.h>
int main(){
	char a[100];
	scanf("%s",a);
	int i=0;
	int len=strlen(a);
	while(i<len){
		while(a[i]==a[i+1])
		i++;
		printf("%c",a[i]);
		i++;
	}
}