int n;
cin >>n; 
while(n--)
{
	cin>>s;
	if(s[0]>='a' && s[0]<='z') 
		s[0]-=32;
	for(int i=1;i<strlen(s);i++)
		if(s[i]>='A' && s[i]<='Z')  
			s[i]+=32;
	cout<<s<<endl;		
}
return 0;