#include<bits/stdc++.h>
#include<atcoder/all>
#define rep(i,n) for(int i=0;i<n;i++)
using namespace std;

using mint = atcoder::modint998244353;

int main(){
	int n, q;
	cin >> n >> q;
	string s;
	cin >> s;
	rep(i, q){
		int t, l, r;
		cin >> t >> l >> r;
		l--; r--;
		if(t == 1){
			for(int i = l; i <= r; i++) s[i] = '_';
		}
		if(t == 2){
			int d = r - l + 1;
			int ans = 0;
			set<string> se;
			rep(bit, 1 << d){
				string t;
				rep(i, d){
					if((bit >> i) & 1) t += s[l + i];
				}
				int m = t.size();
				if(m == 0) continue;
				if(t[0] == '0') continue;
				bool success = true;
				rep(i, m) if(t[i] == '_') success = false;
				if(success) se.insert(t);
			}
			cout << se.size() << "\n";
		}
	}
	return 0;
}