#include using namespace std; //#define int long long #define REP(i,m,n) for(int i=(m);i<(n);i++) #define rep(i,n) REP(i,0,n) #define pb push_back #define all(a) a.begin(),a.end() #define rall(c) (c).rbegin(),(c).rend() #define mp make_pair #define endl '\n' //#define vec vector //#define mat vector > #define fi first #define se second #define double long double typedef long long ll; typedef unsigned long long ull; typedef pair pll; //typedef long double ld; typedef complex Complex; const ll INF=1e9+7; const ll MOD=998244353; const ll inf=INF*INF; const ll mod=INF; const ll MAX=200010; const double PI=acos(-1.0); typedef vector > mat; typedef vector vec; signed main(){ string s;cin>>s; reverse(all(s)); while(s.size()<3)s+='0'; reverse(all(s)); cout<