Go: package main

import (
        "fmt"
        "bufio"
        "os"
        "strings"
)

func main() {
        var s string
        sc := bufio.NewScanner(os.Stdin)
        sc.Scan()
        s = sc.Text()
        fmt.Println(strings.ToUpper(s))
}

C++: #include <iostream>
#include <algorithm>
#include <string>
#include <vector>
#include <cstdio>
#include <cmath>
#include <cstdlib>
#include <cstring>
#include <stack>
#include <queue>
#include <set>
#include <map>
#include <utility>
#include <ctime>
#define INF 999999999
#define mod 1000000007
 
#define rep(i,n) for(int i=0;i<int(n);i++)
#define rrep(i,n) for(int i=(n);i>=0;i--)
#define REP(i,a,b) for(int i=(a);i<int(b);i++)
#define all(x) (x).begin(),x.end()
#define pb push_back
#define mp make_pair
#define MOD(x) (x%(mod))
using namespace std;
 
typedef long long ll;
typedef unsigned long long ull;
typedef vector<int> vi;
typedef pair<int,int> pi;
 
const int dx[4]={1,0,-1,0};
const int dy[4]={0,1,0,-1};

bool debug=false;
/*---------------------------------------------------*/

int main(){
  string s;

  while(cin>>s){
    if(s=="."){cout<<s;break;}
    rep(i,s.size()){
      int tmp;
      tmp=s[i]-'a';
      cout<<char('A'+tmp);
    }
    cout<<" ";
  }
  cout<<endl;
  
  return 0;
}

C++: #include <stdio.h>
#include <iostream>
using namespace std;

int main() {
	char in;
	while (in = getchar(),in!='\n') {
		if ('a' <= in && in <= 'z')
			cout << (char)(in - 0x20);
		else
			cout << in;
	}
	cout << endl;
	return 0;
}

C++: #include <iostream>
#include <cmath>
#include <cstdio>
#include <vector>

using namespace std;

int main(){
    string s;
    char output[210];
    getline(cin,s);
    const char *input = s.c_str();
    int i;
    while(input[i] != '\0'){
        if(input[i] >= 'a' && input[i] <= 'z'){
            output[i] = input[i] - 32;
        }
        else{
            output[i] = input[i];
        }
        i++;
    }
    output[i] = '\0';
    cout << output << endl;
}

C++: #include <stdio.h>
#include <cctype>
int main(){
char ch[1500];
int i = 0;
while(1){
	i=0;
while(1){
    if(scanf("%c", &ch[i]) == EOF){
		return 0;
	}
    if ( ch[i] == '\n' ) break;
	i++;
}
i = 0;
while(1){

	if(islower(ch[i])){
		ch[i] = toupper(ch[i]);
	}	printf("%c",ch[i]);

	if ( ch[i] == '\n' ) break;
	i++;
}
}

}

C++: #include<bits/stdc++.h>
using namespace std;
#define all(vec) vec.begin(),vec.end()
typedef long long int ll;
typedef pair<ll,ll> P;
const ll MOD=1234567;
const ll INF=1000000010;
const ll LINF=1000000000000000010LL;
const int MAX=10000010;
const double EPS=1e-3;
int dx[4]={0,1,0,1};
int dy[4]={0,0,1,1};
int main(){
	string s;
	getline(cin,s);
	for(int i=0;i<s.length();i++){
		if('a'<=s[i]&&s[i]<='z'){
			int a=s[i]-'a';
			s[i]='A'+a;
		}
	}
	cout<<s<<endl;
	return 0;
}

C++: #include <bits/stdc++.h>
#define FOR(i,a,b) for(int i=(a);i<(b);i++)
#define REP(i,b) FOR(i,0,b)
#define BE(c) c.begin(),c.end()
#define PB push_back
#define F first
#define S second
#define BEB(s) s
using namespace std;
int main(){
    string s;
    getline(cin, s);
    for(int i=0; i<s.size(); i++){
        //小文字なら大文字に 
        if(islower(s[i])) s[i]=toupper(s[i]);
    }
     
    cout<<s<<endl;
 
    return 0;
}

C++: #include <iostream>
#include <cstdio>
#include <string>
#include <locale>
using namespace std;

int main(){
	string s;
	getline(cin, s);
	for (int i = 0; i < s.length(); i++){
		printf("%c", toupper(s[i]));
	}
	cout << endl;
	return 0;
}

C++: #include<iostream>
#include<cstdio>
#include<cctype>
#include<string>
using namespace std;
int main(){
  char a;
  string strin;
  while(scanf("%c",&a)!=EOF){
  if(a>='a' && a<='z')a-='a'-'A';
  strin+=a;
  }
  cout<<strin;
}

C++: #include <bits/stdc++.h>

using namespace std;

int main() {
  string str;
  getline(cin, str);
  for (char c : str) cout << (char)toupper(c);
  cout << endl;
}

C++: #include<iostream>
#include<cstdio>
#include<cstring>
using namespace std;
int main(){
	char cent[100];
	for(int i=0;;i++){
		if(scanf("%c",&cent[i]) == EOF){break;}
		if(cent[i]>=97 && cent[i]<=122){cent[i]-=32;}
	}
	cout<<cent;
	return 0;
}

C++: #include<cstdio>
using namespace std;

int main(void){

	char inp;

	while(scanf("%c",&inp)!=EOF){
		if(inp>=97&&inp<=122) inp-=32;
		printf("%c",inp);
	}
	printf("\n");
    return 0;
}

C++: #include <bits/stdc++.h>
using namespace std;
int main(){
  string s;
  getline(cin,s);
  transform(s.begin(),s.end(),s.begin(),::toupper);
  cout << s << endl;
  return 0;
}

C++: #include <iostream>
#include <string>

using namespace std;

int main(void)
{
	string str;
	getline(cin, str);

	for(char& c : str){
		if(c >= 'a' && c <= 'z'){
			c += 'A' - 'a';
		}
	}


	cout << str << endl;


	return 0;
}

C++: #include <iostream>
#include <string>
using namespace std;

int main()
{
	string s;

	getline(cin, s);
	
	for(int i = 0; i < s.size(); i++)
		s[i] = toupper(s[i]);

	cout << s << endl;

	return 0;
}

C++: #include <iostream>
#include <algorithm>
#include <functional>
#include <vector>
#include <cstdio>
#include <string>
#include <cmath>
#include <cfloat>
#include <map>
using namespace std;
int main(){
	
	string x;
	
	getline(cin,x);
	transform(x.begin(),x.end(),x.begin(),toupper);
	cout<<x<<endl;
	

}

C++: #include<iostream>
#include<stdio.h>
#include<string.h>
using namespace std;

int main () {
	char n[10000];
	int end;
	
	gets(n);
	end = strlen(n);
	
	for ( int i = 0; i < end + 1; i++ ) {
		if ( n[i] >= 97 && n[i] <= 122 ) {
			printf("%c",(n[i] - 32));
		} else {
			printf("%c",n[i]);
		}
	}
	cout << endl;
	return 0;
}

C++: #define _CRT_SECURE_NO_WARNINGS

#include <stdio.h>

using namespace std;

int main(int argc, char const* argv[])
{
    int c;
    while ((c = getchar()) != EOF) {
        if('a' <= c && c <= 'z'){
            putchar(c + ('A' - 'a'));
        }else{
            putchar(c);
        }
    }
    return 0;
}

C++: #define _USE_MATH_DEFINES
#include <bits/stdc++.h>
using namespace std;

#define rep(i, n) REP(i, 0, n)
#define ALL(v) v.begin(), v.end()
#define MSG(a) cout << #a << " " << a << endl;
#define REP(i, x, n) for (int i = x; i < n; i++)
#define OP(m) cout << m << endl;
typedef long long ll;
typedef unsigned long long ull;

int main()
{
    string s;
    getline(cin, s);
    transform(ALL(s), s.begin(), ::toupper);
    OP(s)
    return 0;
}

C++: #include<iostream>
#include<cstdio>
#include<string>
using namespace std;
int main(){
  string bun;
  
  getline(cin,bun);
  
  for(int i=0;i<bun.size();i++){
    if(bun[i] <= 'z' && bun[i] >= 'a'){
      printf("%c",bun[i]-32);
    }
    else{
      printf("%c",bun[i]);
    }
  }
  cout << endl;
}

C++: #include <cstdio>
#include <vector>
#include <algorithm>
#include <cstring>
#include <string>
#include <cctype>
#include <sstream>

using namespace std;

#define reep(i,f,n) for(int i=f; i<int(n); ++i)
#define rep(i,n) reep(i,0,n)

typedef vector<int> vi;

int main()
{
	char c;
	while((c = getchar()) != EOF)
		putchar(toupper(c));
	return 0;
}

C++: #define _USE_MATH_DEFINES
#include <iostream>
#include <sstream>
#include <cmath>
#include <algorithm>
#include <queue>
#include <stack>

typedef long long ll;
using namespace std;

int main()
{
	string str;
	getline(cin,str);
	for(int i=0;i<str.size();i++){
		if(str[i] == ' ' || str[i] == '.') continue;
		str[i] = toupper(str[i]);
	}

	cout << str;	
}

C++: #include<iostream>
#include<ctype.h>
using namespace std;
int main(){
    char c;
    while(cin>>c)
    {
        c=toupper(c);
        cout<<c;
    }
}

C++: #include<iostream>
#include<cstring>
#include<cctype>
#include<string>
#include<cstdio>
using namespace std;

int main(){
	char c;
	while(1){
		scanf("%c",&c);
		if(c=='\0')break;
		if(c==0)break;
		c=toupper(c);
		printf("%c",c);
	}
	return 0;
}