#include <bits/stdc++.h>
using namespace std;
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  cout.tie(NULL);
  int n, m, k, cntr = 1, s = 1;
  cin >> n >> m >> k;
  string str;
  cin >> str >> str;
  if (str == "head") cntr = -1;
  cin >> str;
  int l = str.length();
  if (m < k) s = -1;
  for (int i = 0; i < l; i++) {
    if (str[i] == '0') {
      if (m != 1 && m != n) m += s;
    } else {
      if (cntr == 1)
        m = 1;
      else
        m = n;
    }
    k += cntr;
    if (k == n)
      cntr = -1;
    else if (k == 1)
      cntr = 1;
    if (m == k) {
      cout << "Controller " << i + 1 << "\n";
      return 0;
    }
  }
  cout << "Stowaway\n";
  return 0;
}
