#include <cstdio>

int main() {
	int n, i, j, l;
	int be[5], ki[5];
	while (1) {
		scanf("%d", &n);
		if (n == 0) break;
		
		for (i = 0; i < n; ++i) {
			scanf("%d %d", &(be[i]), &(ki[i]));
		}
		
		if (n == 1) {
			if (be[0] == ki[0]) {
				printf("END\n");
			} else if (be[0] < ki[0]) {
				printf("NUM %d\nADD\nEND\n", ki[0] - be[0]);
			} else {
				printf("NUM %d\nSUB\nEND\n", be[0] - ki[0]);
			}
		} else {
			for (i = 0; i < n*(n-1)-1; ++i) printf("DUP\n");
			for (i = 0; i < n; ++i) {
				l = 1;
				printf("NUM %d\n", ki[i]);
				for (j = 0; j < n; ++j) {
					if (j == i) continue;
					l *= (be[i] - be[j]);
					printf("SWP\nNUM %d\nSUB\nMUL\n", be[j]);
				}
				if (l < 0) {
					printf("NUM %d\nINV\n", -l);
				} else {
					printf("NUM %d\n", l);
				}
				printf("DIV\nADD\n");
			}
			printf("END\n");
		}
		printf("\n");
	}
	return 0;
}