// Problem: C - Airport Code
// Contest: AtCoder - AtCoder Beginner Contest 349
// URL: https://atcoder.jp/contests/abc349/tasks/abc349_c
// Memory Limit: 1024 MB
// Time Limit: 2000 ms
//
// Powered by CP Editor (https://cpeditor.org)

/*Code by Leo2011*/
#include <bits/stdc++.h>

#define log printf
#define EPS 1e-8
#define INF 0x3f3f3f3f
#define FOR(i, l, r) for (int(i) = (l); (i) <= (r); ++(i))
#define IOS                      \
	ios::sync_with_stdio(false); \
	cin.tie(nullptr);            \
	cout.tie(nullptr);

using namespace std;

typedef __int128 i128;
typedef long long ll;
typedef pair<int, int> PII;

int len, sum;
unordered_map<char, int> mp;
string s, s2;

template <typename T>

inline T read() {
	T sum = 0, fl = 1;
	char ch = getchar();
	for (; !isdigit(ch); ch = getchar())
		if (ch == '-') fl = -1;
	for (; isdigit(ch); ch = getchar()) sum = sum * 10 + ch - '0';
	return sum * fl;
}

template <typename T>

inline void write(T x) {
	if (x < 0) putchar('-'), x = -x;
	static T sta[35];
	int top = 0;
	do { sta[top++] = x % 10, x /= 10; } while (x);
	while (top) putchar(sta[--top] + 48);
}

bool chk(string s, string t) {
	if (s.size() == 0) return 1;
	string::iterator its = s.begin();
	string::iterator itt = t.begin();
	while (itt != t.end()) {
		if (*its == *itt) its++;
		if (its == s.end()) return 1;
		itt++;
	}
	return 0;
}

int main() {
	IOS cin >> s >> s2;
	len = s.size() - 1;
	FOR(i, 0, 2) s2[i] += 32;
	FOR(i, 0, len)++ mp[s[i]];
	FOR(i, 0, 2) if (mp[s2[i]] > 0)-- mp[s2[i]], ++sum;
	if ((sum == 3 && chk(s2, s)) || (sum == 2 && s2[2] == 'x')) {
		if (sum == 2) {
			s2.erase(2);
			if (chk(s2, s)) putchar('Y'), putchar('e'), putchar('s');
			else putchar('N'), putchar('o');
		} else putchar('Y'), putchar('e'), putchar('s');
	} else putchar('N'), putchar('o');
	return 0;
}

AC47，WA1寄……

提交记录