/*
 * "count up" from N to M by I, recursively
 */
#include <stdio.h>

/* 
 * "count up" from start to end by incr
 */
void count(int start, int end, int incr) {
	if (incr > 0) {
		if (start > end) {
			printf("THE END\n");
		}
		else {
			printf("%d\n", start);
			count (start+incr, end, incr);
		}
	}
	else if (incr < 0) {
		if (start < end) {
			printf("THE END\n");
		}
		else {
			printf("%d\n", start);
			count (start+incr, end, incr);
		}
	}
	else {
		printf("increment must be nonzero\n");
	}
}

/* main program */
int main(void) {
	int N, M, I;
	printf("enter start, stop, increment\n");
	if (scanf("%d %d %d", &N, &M, &I) == 3) {
		count(N, M, I);
		return 0;
	}
	else {
		printf("not number\n");
		return 1;
	}
}