一本通1139

#include <bits/stdc++.h>
#define rep(i,j,n) for(register int i=j;i<=n;i++)
#define Rep(i,j,n) for(register int i=j;i>=n;i--)
#define low(x) x&(-x)
using namespace std ;
typedef long long LL ;
const int inf = INT_MAX >> 1 ;
inline LL In() { LL res(0) , f(1) ; register char c ;
#define gc c = getchar()
    while(isspace(gc)) ; c == '-' ? f = - 1 , gc : 0 ;
    while(res = (res << 1) + (res << 3) + (c & 15) , isdigit(gc)) ;
    return res * f ;
#undef gc
}

string s ;
inline void Ot() {
	int t = In() ;
	while(t --) {
		getline(cin , s) ;
		int len = s.length() ;
		if(islower(s[0])) s[0] = s[0] - 'a' + 'A' ;
		rep(i,2,len) if(isupper(s[i-1])) s[i-1] = (s[i-1] - 'A') + 'a' ;
		rep(i,1,len) putchar(s[i-1]) ;
		puts("") ;
	}
}
signed main() {
//  freopen("test.in","r",stdin) ;
    return Ot() , 0 ;
}