#include <stdio.h>
#include <algorithm>
#include <string.h>
  
using namespace std;
  
#define MAXL 2010
#define MAXP 120
#define MAXV 30
  
char S[100010], S1[100010];
int P[MAXP] = {1500000001, 1500000041,1500000043,1500000059,1500000077,1500000079,1500000101,1500000107,1500000113,1500000167,1500000233,1500000283,1500000301, 1500000373 ,1500000377 ,1500000409 ,1500000419 ,1500000427 ,1500000449 ,1500000473 ,1500000511 ,1500000527 ,1500000529 ,1500000563 ,1500000577 ,1500000587 ,1500000613 ,1500000617 ,1500000701 ,1500000707 ,1500000713 ,1500000721 ,1500000739 ,1500000743 ,1500000767 ,1500000773 ,1500000779 ,1500000787 ,1500000823 ,1500000829 ,1500000839 ,1500000851 ,1500000857 ,1500000871 ,1500000877 ,1500000893 ,1500000917 ,1500000973 ,1500001003 ,1500001033 ,1500001043 ,1500001049 ,1500001117 ,1500001213 ,1500001231 ,1500001241 ,1500001271 ,1500001291 ,1500001319 ,1500001333 ,1500001337 ,1500001343 ,1500001367 ,1500001369 ,1500001387 ,1500001397 ,1500001411 ,1500001421 ,1500001439 ,1500001453 ,1500001457 ,1500001507 ,1500001543 ,1500001549 ,1500001553 ,1500001577 ,1500001661 ,1500001673 ,1500001709 ,1500001733 ,1500001747 ,1500001751 ,1500001753 ,1500001777 ,1500001799 ,1500001801 ,1500001847 ,1500001859 ,1500001891 ,1500001907 ,1500001927 ,1500001939 ,1500001967 ,1500002057 ,1500002069 ,1500002071 ,1500002087 ,1500002099 ,1500002113 ,1500002117 ,1500002129 ,1500002143 ,1500002149 ,1500002197 ,1500002219 ,1500002233 ,1500002323 ,1500002381 ,1500002401 ,1500002419 ,1500002423 ,1500002503 ,1500002521 ,1500002527 ,1500002579 ,1500002591 ,1500002593 ,1500002639 ,1500002653 ,1500002657 };
int R[MAXP];
int Type[MAXV];
int Modul[MAXV];
int A[MAXL], B[MAXL], a[MAXL], b[MAXL], Ceva[MAXL];
int Variable[MAXV][MAXL];
int N, MOD, Poz;
int i, j, aux;
  
int Eval(void);
int Termen(void);
int Factor(void);
  
inline void Transform(int A[], int B)
{
    int i, t = B;
    for (i = 1; t; ++i, t /= 10)
        A[i] = t % 10;
    A[0] = i - 1;
}
inline int putere(int N, int K)
{
    int Ans = 1;
    for (int i = 0; (1LL<<i) <= K; ++i){
        if (K & (1<<i))
            Ans = (1LL * Ans * N) % MOD;
        N = (1LL * N * N) % MOD;
    }
    return Ans;
}
  
int Eval(void)
{
    int Rez = Termen();
    while (S[Poz] == '+' || S[Poz] == '-')
        if (S[Poz] == '+'){
            ++Poz;
            Rez = (1LL * Rez + Termen()) % MOD;
        }
        else{
            ++Poz;
            Rez = (MOD + 1LL * Rez - Termen()) % MOD;
        }
    return Rez;
}
  
int Termen(void)
{
    int Rez = Factor();
    while (S[Poz] == '*'){
        ++Poz;
        Rez = (1LL * Rez * Factor()) % MOD;
    }
    return Rez;
}
  
int Factor(void)
{
    int aux;
    switch (S[Poz]){
        case '(':
            ++Poz;
            aux = Eval();
            ++Poz;
            break;
        case '[':
            ++Poz;
            aux = Eval();
            aux = (1LL * aux * aux) % MOD;
            ++Poz;
            break;
        case '+':
            ++Poz;
            aux = Eval();
            break;
        case '-':
            ++Poz;
            aux = (MOD - Eval()) % MOD;
            break;
        default :
            if (Type[S[Poz] - 'a' + 1] == 0)
                aux = Modul[S[Poz] - 'a' + 1];
            else
                aux = MOD - Modul[S[Poz] - 'a' + 1];
            ++Poz;
            break;
    }
    return aux;
}
  
int Mod_mare(int A[])
{
    int Rest = 0;
    for (int i = A[0]; i >= 1; --i)
        Rest = (1LL * Rest * 10 + A[i]) % MOD;
    return Rest;
}
  
void Mul(int A[], int B)
{
    int i;
    long long t = 0;
    for (i = 1; i <= A[0] || t; ++i, t /= 10)
        A[i] = (t += 1LL * A[i] * B) % 10;
    A[0] = i - 1;
}
  
void Add(int A[], int B[])
{
    int i, t = 0;
    for (i = 1; i <= A[0] || i <= B[0] || t; ++i, t /= 10)
        A[i] = (t += A[i] + B[i]) % 10;
    A[0] = i - 1;
}
  
void Sub(int A[], int B[])
{
    int i, t = 0;
    for (i = 1; i <= A[0]; i++) {
        A[i] -= ((i <= B[0]) ? B[i] : 0) + t;
        A[i] += (t = A[i] < 0) * 10;
    }
    for (; A[0] > 1 && !A[A[0]]; A[0]--);
}
  
int main()
{
    freopen("eval.in","r",stdin);
    freopen("eval.out","w",stdout);
      
    srand(10);
      
    scanf("%d\n", &N);
    for (i = 1; i <= N; ++i){
        gets(S1);
        if (S1[0] == '-'){
            Type[i] = 1;
            memcpy(S, S1+1, sizeof(S) - sizeof(int));
        }
        else
            memcpy(S, S1, sizeof(S));
          
        Variable[i][0] = strlen(S);
        for (j = 1; j <= Variable[i][0]; ++j)
            Variable[i][j] = S[Variable[i][0] - j] - '0';
    }
    gets(S);
      
    for (i = 0; i < MAXP; ++i){
        MOD = P[i];
        Poz = 0;
        for (j = 1; j <= N; ++j)
            Modul[j] = Mod_mare(Variable[j]);
        R[i] = Eval();
        R[i] = (1LL * R[i] + putere(10, 1000)) % MOD;
    }
      
    Transform(A, P[0]);
    Transform(a, R[0]);
    for (i = 1; i < MAXP; ++i){
        Transform(B, P[i]);
        Transform(b, R[i]);
        MOD = P[i];
        aux = Mod_mare(b) - Mod_mare(a);
        while (aux < 0) aux += MOD;
        aux = (1LL * aux * putere(Mod_mare(A), MOD - 2)) % MOD;
          
        if (aux != 0){
            memcpy(Ceva, A, sizeof(A));
            Mul(Ceva, aux);
        }
        else
            memset(Ceva, 0, sizeof(Ceva));
          
        Add(a, Ceva);
        Mul(A, P[i]);
    }
      
    memset(b, 0, sizeof(b));
    b[0] = 1001;
    b[1001] = 1;
      
    if (a[0] <= 1000){
        printf("-");
        Sub(b, a);
        memcpy(a, b, sizeof(b));
    }
    else
        Sub(a, b);
      
    for (i = a[0]; i >= 1; --i)
        printf("%d", a[i]);
    printf("\n");
      
    return 0;
}