#include <bits/stdc++.h>
#pragma GCC optimize("Ofast", "inline", "-ffast-math")
#pragma GCC target("avx,sse2,sse3,sse4,mmx")
inline long long read() {
  long long s(0);
  bool w(1);
  char ch = getchar();
  while (ch < '0' || ch > '9') {
    if (ch == '-') w = -1;
    ch = getchar();
  }
  while (ch >= '0' && ch <= '9') s = s * 10 + ch - '0', ch = getchar();
  return s * w;
}
long long l, r, n, m, x, y, num;
int main() {
  n = read(), x = read();
  for (int i = 1; i <= n; i++) {
    num = read();
    l = l * x + num;
  }
  scanf("%lld%lld", &m, &y);
  for (int i = 1; i <= m; i++) {
    num = read();
    r = r * y + num;
  }
  puts(l == r ? "=" : (l > r ? ">" : "<"));
}
