#include<bits/stdc++.h>
using namespace std;
int n,m,a[100100]={0};
string s;
int main(){
    freopen("Carillon.in","r",stdin);
    freopen("Carillon.out","w",stdout);
    cin>>n>>m;
    cin>>s;
    for(int i=0;i<s.length();i++)
    {
        a[i+1]=s[i]-'0';
    }
    for(int i=1;i<=m;i++)
    {
        int x;
        cin>>x;
        if(x==1)
        {
            int l,r;
            char b;
            cin>>l>>r>>b;
            for(int j=l;j<=r;j++)
            {
                a[j]=b-'0';
            }
        }
        if(x==2)
        {
            int l,r;
            cin>>l>>r;
            sort(a+l,a+r+1);
        }
    }
    for(int i=1;i<=s.length();i++)
    {
        cout<<char(a[i]+'0');
    }
    cout<<endl;
    return 0;
}