bolo

//1
/*
#include <bits/stdc++.h>
using namespace std;
int main() {
  long long N,M,T;
  int i,P=0;
  N^=M;
  T=(((1<<8)-1)<<3)|(((1<<39)-1)<<21);
  N&=T;
  for(i=0,N;N&=N-1)++P;
}

//2
#include <bits/stdc++.h>
using namespace std;
int main() {
  string S;cin>>S;
  int i,mx='0';
  for(i=0;i<S.size();++i)
    if(S[i]>='0' && S[i]<='6' && S[i]>mx)mx=S[i];
  if(S=='0')cout<<0;
  else if(mx=='0')cout<<-1;
  else cout<<mx-'0';
}

//3
#include <bits/stdc++.h>
using namespace std;
int main() {
  string S;cin>>S;
  int i,D='a'-'A';
  for(i=0;i<S.size();++i)
    if(S[i]>='a' && S[i]<='z')S[i]-=D;
  cout<<S;
}