#include <iostream>
#include <algorithm>
#include <string>
using namespace std;
int main() {
std::string x;
size_t y;
std::cin >> x;
std::cin >> y;
if(y<x.length()){
x.erase(x.begin()+(x.length()-y),x.end());
std::cout << x;
}
return 0;
}
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