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

int radix;

char num1[1005], num2[1005], sum[2010];

int val(char c) {
	if( c >= '0' && c <= '9' ) return c - '0';
	return c - 'A' + 10;
}
inline char chr(int i) {
	return (i < 10) ? ('0' + i) : ('A' - 10 + i);
}

void secti() {
	int carry = 0;
	int idx = 0;
	int sub = 0;
	char * rest;
	
	while( num1[idx] && num2[idx] ) {
		sub = val(num1[idx]) + val(num2[idx]) + carry;
		sum[idx] = chr(sub % radix);
		carry = sub / radix;
		idx++;
	}
	rest = (num1[idx] == 0) ? num2 : num1;

	while( rest[idx] ) {
		sub = val(rest[idx]) + carry;
		sum[idx] = chr(sub % radix);
		carry = sub / radix;
		idx++;
	}
	if(carry) sum[idx++] = chr(carry);
	sum[idx] = 0;	

}

void readnum(char * result) {
	char line[2100];
	int i=0, j=0;

	scanf("%s\n", line);
	i = strlen(line);
	while(i > 0) result[j++] = line[--i];
	result[j] = 0;
}

int readones() {
	char line[2100];
	int i;

	scanf("%s\n", line);
	printf("%s", line);
	i = strlen(line);
	return i;
}

void printones(int cnt) {
	char put[2100];
	int i=0;

	while(i < cnt) put[i++] = '1';
	put[i] = 0;
	printf("%s", put);
}


void printnum(char num[]) {
	char put[2100];
	int i=0, j=0;

	i = strlen(num);

	while(i > 0) put[j++] = num[--i];
	put[j] = 0;
	printf("%s", put);
}

int main() {

	int s;

    for(;;) {
        scanf("%d\n", &radix);
        if(radix == 0) break;
	if(radix == 1) {
		s = readones();
		printf(" + ");
		s += readones();
		printf(" = ");
		printones(s);
		printf("\n");
	} else {
		readnum(num1);
		readnum(num2);
		printnum(num1);
		printf(" + ");
		printnum(num2);
		printf(" = ");
		secti();
		printnum(sum);
		printf("\n");
	}
    }
    return 0;
}