#include <stdint.h>
#include <stdio.h>
#include <inttypes.h>
#include <errno.h>
#include <stdlib.h>

struct Elem
{
    struct Elem *next;
    char *str;
};
struct Elem *dup_elem(struct Elem *head) {
	struct Elem *cur = head;
	struct Elem *pred = NULL;
	while (cur != NULL) {
		const int radix = 10;
	    char *eptr;
	    errno = 0;
	    long long value = strtol(cur->str, &eptr, radix);
	    if (!*cur->str || *eptr || errno) {
	    	//printf("%s\n", cur->str);
	    	pred = cur;
	    	cur = cur->next;
	    } else {
	    	//printf("%s\n", cur->str);
	    	value -= 1;
	    	if (value == (int32_t)value) {
	    		struct Elem *new = malloc(8);
	    		new->str = malloc(30);
	    		new->next = cur;
	    		sprintf(new->str, "%d", (int32_t)value);
	    		if (pred == NULL) {
	    			head = new;
	    		} else {
	    			pred->next = new;
	    		}
	    	}
	    	pred = cur;
	    	cur = cur->next;
	    }
	}
	return head;
}
int main() {
	char s1[20];
	char s2[20];
	char s3[20];
	scanf("%s%s%s",s1,s2,s3);

	struct Elem h1;
	h1.str = s1;
    h1.next = NULL;

	struct Elem h2;
	h2.str = s2;

	h1.next = &h2;

	struct Elem h3;
	h3.str = s3;

	h2.next = &h3;
	h3.next = NULL;

	struct Elem *head = dup_elem(&h1);
	while (head != NULL) {
		printf("%s\n", head->str);
		head = head->next;
	}
}