// @BEGIN_OF_SOURCE_CODE

/* @JUDGE_ID:  17243NT  126  C++ */

// Send to judge@uva.es

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

#define N 201
#define	PLUS '+'
#define	MINUS '-'
#define	XVAR 'x'
#define	YVAR 'y'
#define	getnum(x)	(x - '0')

typedef struct {
	int	c[100];
	int	x[100];
	int	y[100];
	int	n;
} poly;

int	l;

FILE *input, *output;
poly inpoly[2];
int	ocoef[N + 1][N + 1];
char oline[2][1000];

void writemain(int, int);
void cat(int, char[]);
void readinput(int);

int main() {
	int	i,j;

	input = stdin;
	output = stdout;
	
	for(;;) {
		l = 0;
		inpoly[0].n = inpoly[1].n = 0;

		for(i = 0; i < 100; i++) {
			inpoly[0].c[i] = inpoly[1].c[i] = 0;
			inpoly[0].x[i] = inpoly[1].x[i] = 0;
			inpoly[0].y[i] = inpoly[1].y[i] = 0;
		}

		for(i = 0; i < N + 1; i++) {
			for(j = 0; j < N + 1; j++) {
				ocoef[i][j] = 0;
			}
		}
		
		for(i = 0; i < 1000; i++)
			oline[0][i] = oline[1][i] = '\0';
		
		readinput(0);
		readinput(1);
		for(i = 0; i < inpoly[0].n; i++) {
			for(j = 0; j < inpoly[1].n; j++) {
				ocoef[inpoly[0].x[i] + inpoly[1].x[j]][inpoly[0].y[i] + inpoly[1].y[j]]
					+= inpoly[0].c[i] * inpoly[1].c[j];
			}
		}

		for(i = N; i >= 0; i--) {
			for(j = 0; j <= N; j++) {
				if(ocoef[i][j]) writemain(i,j);
			}
		}
		
		if(strlen(oline[0]) < strlen(oline[1])) {
			for(i = strlen(oline[0]); i < strlen(oline[1]); i++)
				oline[0][i] = ' ';
			oline[0][i] = '\0';
		} else if(strlen(oline[1]) < strlen(oline[0])) {
			for(i = strlen(oline[1]); i < strlen(oline[0]); i++)
				oline[1][i] = ' ';
			oline[1][i] = '\0';
		}

		fprintf(output,"%s\n%s\n", oline[0], oline[1]);
	}
	
	return 0;
}

void writemain(int x, int y) {
	char temp[10];
	int	c = ocoef[x][y];
	if(l == 0) {
		if(c < 0) cat(1,"-");
	} else {
		if(c < 0) cat(1," - ");
		else cat(1," + ");
	}
	
	if(c < 0) c = -c;
	if(c != 1 || x + y == 0) {
		sprintf(temp, "%d", c);
		cat(1, temp);
	}
	
	if(x > 0) {
		cat(1, "x");
		if(x > 1) {
			sprintf(temp, "%d", x);
			cat(0, temp);
		}
	}
	
	if (y > 0) {
		cat(1, "y");
		if (y > 1) {
			sprintf(temp, "%d", y);
			cat(0, temp);
		}
	}
}

void cat(int b, char a[]) {
	int	j, i = strlen(oline[b]), k=strlen(a);
	
	for(j = i; j < l; j++) oline[b][j] = ' ';
	for(j = l; j < l + k; j++) oline[b][j] = a[j - l];
	
	l += k;
}

void readinput(int t) {
	char line[80];
	char c,i,j;
	int	counter=0, d, x, y, sign;

	fscanf(input, "%s", &line);
	if(line[0] == '#') exit(0);
	
	while((c = line[counter]) != NULL) {
		x=0, y=0;
		sign=1; if(c == MINUS) sign = -1, c = line[++counter];
		if(c == PLUS) c = line[++counter];
		if(c >= '0' && c <= '9') {
			d = getnum(c);
			i = line[++counter];
				if(i >= '0' && i <= '9') {
					d = d * 10 + getnum(i);
					j = line[++counter];
					if(j >= '0' && j <= '9') {
						d = d * 10 + getnum(j);
					counter++;
				}
			}
			d = d * sign;
		} else d = sign;

		while ((c = line[counter]) == 'x' || c == 'y') {
			if(c == 'x') {
				x = 1;
				c = line[++counter];
				if(c >= '0' && c <= '9') {
					x = getnum(c);
					i = line[++counter];
					if(i >= '0' && i <= '9') {
						x = 10 * x + getnum(i);
						j = line[++counter];
						if(j >= '0' && j <= '9') {
							x = 10 * x + getnum(j);
							counter++;
						}
					}
				}
			}

			if((c = line[counter]) == 'y') {
				y = 1;
				c = line[++counter];
				if(c >= '0' && c <= '9') {
						y = getnum(c);
						i = line[++counter];
						if(i >= '0' && i <= '9') {
						y = 10 * y + getnum(i);
						j = line[++counter];
						if(j >= '0' && j <= '9') {
							y=10 * y + getnum(j);
							counter++;
						}
					}
				}
			}
		}
		
		inpoly[t].c[inpoly[t].n] = d;
		inpoly[t].x[inpoly[t].n] = x;
		inpoly[t].y[inpoly[t].n] = y;
		inpoly[t].n++;
	 }
}

// @END_OF_SOURCE_CODE