https://swexpertacademy.com/main/code/problem/problemDetail.do?contestProbId=AXdHwI1aCy0DFAS5&
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.IOException;
import java.util.StringTokenizer;
class Solution {
static StringBuilder answer = new StringBuilder();
static Reader scanner = new Reader();
static String P;
static String Q;
static void input() {
P = scanner.nextLine();
Q = scanner.nextLine();
}
static void solution() {
if(Q.equals(P + 'a')) {
answer.append('N').append('\n');
return;
}
answer.append('Y').append('\n');
}
public static void main(String[] args) {
int T = scanner.nextInt();
for(int test = 1; test <= T; test++) {
answer.append('#').append(test).append(' ');
input();
solution();
}
System.out.print(answer);
}
static class Reader {
BufferedReader br;
StringTokenizer st;
public Reader() {
br = new BufferedReader(new InputStreamReader(System.in));
}
String next() {
while (st == null || !st.hasMoreElements()) {
try {
st = new StringTokenizer(br.readLine());
} catch (IOException e) {
e.printStackTrace();
}
}
return st.nextToken();
}
int nextInt() {
return Integer.parseInt(next());
}
String nextLine() {
String str = "";
try {
str = br.readLine();
} catch (IOException e) {
e.printStackTrace();
}
return str;
}
}
}