#include <stdio.h>

char buffer[32000] = {0};

void store(char to[]){
	int toCrsr = 0;
	for(int i = getchar();i != EOF; ++toCrsr){
		to[toCrsr] = i;
		i = getchar();
	}
}

void test(){
	int pos = 0;

	for(char b = buffer[pos]; b != 0; ++pos){
		putchar(buffer[pos]);
		b = buffer[pos];
	}
}

int main(){
	store(buffer);
	test();
}