#include using namespace std; #include using namespace atcoder; #define rep(i,n) for (int i = 0; i < (n); i++) #define REP(i,a,b) for(int i=(a);i<(b);i++) #define all(v) begin(v),end(v) #define rall(v) rbegin(v),rend(v) #define fi first #define se second #define re0 return 0 template inline bool chmax(A &a, B b) { if (a inline bool chmin(A &a, B b) { if (a>b) { a=b; return 1; } return 0; } using ll = long long; using pii = pair; using pll = pair; using tup = tuple; using cp = complex; constexpr ll inf = 2e9; constexpr ll llinf = 9e18; //constexpr ll MOD = 998244353; constexpr ll MOD = 1000000007; const double pai = acos(-1); int main() { //cout<>n>>q; string s;cin>>s; rep(Q,q){ int l,r,x;cin>>l>>r>>x; l--; vector vec(26); REP(i,l,r)vec[s[i]-'a']++; ll cnt=0; rep(i,26){ if(!vec[i])continue; if(cnt+vec[i]>=x){ cout<