#include <stdio.h>
#include <stdlib.h>

struct Node
{
    char data;
    struct Node* link;
};

char a;
int val;
struct Node* top = NULL;

void push()
{
    struct Node* NewNode = (struct Node*) malloc(sizeof(struct Node));
    NewNode->data = a;
    NewNode->link = top;
    top=NewNode;
}

void print()
{
    struct Node* temp = top;
    while(temp!=NULL)
    {
        printf("\n\n\n%c",temp->data);
        temp=temp->link;
    }
    printf("\n");

}

int main(){
while(val=1)
{
scanf("%c", &a);
push();
print();
}


}