#include<cstdio>
#include<cstring>
#include<algorithm>
#include<functional>
using namespace std;
int main(void)
{
	int len,i,j;
	char s,ss[100001];
	i=0;
	while(scanf("%c",&s)!=EOF) {
		
		if('A'<=s && 'Z'>=s) ss[i]=s;
		else if('a'<=s && 'z'>=s){
			s=s-('a'-'A');
			ss[i]=s;
		}
		else ss[i]=s;
		i++;
	}
	ss[i+1]='\0';
	printf("%s\n",ss);
	return 0;
}
		