#include <cstdio>
#include <iostream>
#include <algorithm>
#include <iterator>
#include <string>
#include <vector>
#include <cmath>
#include <set>
#include <map>
#include <queue>
#include <numeric>
#include <list>
#include <cstring>
#include <cctype>
#include <sstream>

using namespace std;

typedef long long LL;
typedef long double LD;
typedef vector<int> VI;
typedef pair<int,int> PII;
typedef vector<PII> VPII;

#define MP make_pair
#define ST first
#define ND second
#define PB push_back
#define FOR(i,a,b) for( int i=(a); i<=(b); ++i)
#define FORD(i,a,b) for( int i=(a); i>=(b); --i)
#define REP(i,n) for(int i=0; i<(n); ++i)
#define ALL(X) (X).begin(),(X).end()
#define SIZE(X) (int)(X).size()
#define FOREACH(it,X) for(__typeof((X).begin()) it=(X).begin(); it!=(X).end(); ++it)

char txt[1000];


bool czycyf(char x){
	return x >= '0' && x <= '9';
}

void zamien(char *b, int n, int r, int &len){
	len = 0;
	if (n == 0){
		b[0] = '0';
		len = 1;
		return;
	}
	int mn = 1;
	int i = 0;
	r = -r;
	while(n > 0){
		if (mn > 0){
			b[i] = '0' + (n % r);
			n /= r;
		}else{
			if (n % r){
				b[i] = '0' + (r - n % r);
				n = (n/r) + 1;
			}else{
				b[i] = '0';
				n = n/r;
			}
		}
		mn *= -r;
		i++;
	}
	len = i;
}

int main(){
	while(1){
		fgets(txt, 999, stdin);
		if (txt[0]=='e') break;
		if (txt[0]=='t'){
			int r, n;
			sscanf(txt+2, "%d %d", &r, &n);
			char wyn[1000]; 
			if (n < 0){
				int mn = 1, id = 0;
				while (mn * (-r-1)> n){
					mn *= r;
					id++;
				}
				int c = 1; while (mn * c > n) ++c;
				REP(i, id) wyn[i] = '0';
				int d;
				zamien(wyn, n-c*mn, r, d);
				wyn[id] = '0'+c;
				wyn[id+1] = 0;
				reverse(wyn, wyn+id+1);
				printf("%s\n", wyn);
			}else{
				int d;
				zamien(wyn, n, r, d);
				wyn[d] = 0;
				reverse(wyn, wyn+d);
				printf("%s\n", wyn);
			}
		}else{
			int i = 4;
			int r;
			sscanf(txt+4, "%d", &r);
			while(txt[i] != ' ') ++i;
			while(!czycyf(txt[i])) ++i;
			int j = i;
			while(czycyf(txt[j])) ++j;
			int mn = 1;
			int s = 0;
			for(j--; j>=i; --j){
				s += (txt[j]-'0') * mn;
				mn *= r;
			}
			printf("%d\n", s);
		}
	}
	return 0;
}