n = int(input()) if n >= 301: s = n - 50 print(s) elif n >= 201: s = n - 20 print(s) elif n >= 100: s = n - 10 print(s) else: print(n)

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#include<iostream> using namespace std; int main(){ int a; cin>>a; if(a<=100){ cout<<a<<endl; } else if(a>100&&a<=200){ cout<<a-10<<endl; } else if(a>200&&a<=300){ cout<<a-20<<endl; } else{ cout<<a-50<<endl; } return 0; }