#include<bits/stdc++.h> using namespace std; int main() { int a,b,c; /cin>>a; for(int i=1;i<=a-1;i++) { b+=i2; } b+=a-1; cout<<b;*/ /cin>>a; cout<<ceil(pow(double(a/10),2)); return 0;/ cin>>a; if(a>=0) cout<<a%2023; else cout<<a%2023+2023; }