#include <bits/stdc++.h>
using namespace std;
void __print(int x) { cerr << x; }
void __print(long x) { cerr << x; }
void __print(long long x) { cerr << x; }
void __print(unsigned x) { cerr << x; }
void __print(unsigned long x) { cerr << x; }
void __print(unsigned long long x) { cerr << x; }
void __print(float x) { cerr << x; }
void __print(double x) { cerr << x; }
void __print(long double x) { cerr << x; }
void __print(char x) { cerr << '\'' << x << '\''; }
void __print(const char *x) { cerr << '\"' << x << '\"'; }
void __print(const string &x) { cerr << '\"' << x << '\"'; }
void __print(bool x) { cerr << (x ? "true" : "false"); }
template <typename T, typename V>
void __print(const pair<T, V> &x) {
  cerr << '{';
  __print(x.first);
  cerr << ',';
  __print(x.second);
  cerr << '}';
}
template <typename T>
void __print(const T &x) {
  int f = 0;
  cerr << '{';
  for (auto &i : x) cerr << (f++ ? "," : ""), __print(i);
  cerr << "}";
}
void _print() { cerr << "]\n"; }
template <typename T, typename... V>
void _print(T t, V... v) {
  __print(t);
  if (sizeof...(v)) cerr << ", ";
  _print(v...);
}
void S_K_S() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  cout.tie(0);
}
int32_t main() {
  S_K_S();
  int t;
  cin >> t;
  while (t--) {
    string s;
    cin >> s;
    int n = s.size();
    int ans = INT_MAX;
    map<char, int> make_pair;
    int i = 0, j = 0, k = 0;
    for (i = 0; i < n; i = k) {
      int tg = 0;
      for (j = i; j < n; j++) {
        make_pair[s[j]]++;
        if (make_pair.size() == 3) {
          tg = 1;
          break;
        }
      }
      if (tg == 0) break;
      for (k = i; k <= j; k++) {
        if (make_pair.size() == 3) {
          ans = min(ans, j - k + 1);
          make_pair[s[k]]--;
          if (make_pair[s[k]] == 0) make_pair.erase(s[k]);
        } else
          break;
      }
      make_pair.clear();
    }
    if (ans == INT_MAX)
      cout << 0 << "\n";
    else
      cout << ans << "\n";
  }
}
