#include<bits/stdc++.h> using namespace std; int main() { int n; cin>>n; int t=n%10; if(t==0||t==1||t==2) { cout<<n-t; } if(t==3||t==4||t==5||t==6||t==7) { cout<<n+(5-t); } if(t==8||t==9) { cout<<n+(10-t); } return 0; }
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