Compare T-Shirt Sizes

传送门

Two T-shirt sizes are given: aa and bb. The T-shirt size is either a string M or a string consisting of several (possibly zero) characters X and one of the characters S or L.

For example, strings M, XXL, S, XXXXXXXS could be the size of some T-shirts. And the strings XM, LL, SX are not sizes.

The letter M stands for medium, S for small, L for large. The letter X refers to the degree of size (from eXtra). For example, XXL is extra-extra-large (bigger than XL, and smaller than XXXL).

You need to compare two given sizes of T-shirts aa and bb.

The T-shirts are compared as follows:

any small size (no matter how many letters X) is smaller than the medium size and any large size;
any large size (regardless of the number of letters X) is larger than the medium size and any small size;
the more letters X before S, the smaller the size;
the more letters X in front of L, the larger the size.

For example:

XXXS < XS
XXXL > XL
XL > M
XXL = XXL
XXXXXS < M
XL > XXXS

Input

The first line of the input contains a single integer tt (1 \le t \le 10^41≤t≤104) — the number of test cases.

Each test case consists of one line, in which aa and bb T-shirt sizes are written. The lengths of the strings corresponding to the T-shirt sizes do not exceed 5050. It is guaranteed that all sizes are correct.

Output

For each test case, print on a separate line the result of comparing aa and bb T-shirt sizes (lines "<", ">" or "=" without quotes).

Sample 1

Inputcopy	Outputcopy
6 XXXS XS XXXL XL XL M XXL XXL XXXXXS M L M	< > > = < >

判断语句的使用，梳理分类好就容易写了

#include <iostream>
#include <cstring>
using namespace std;int main()
{int n;cin >> n;string s1, s2;char c1, c2;int l1, l2;while (n--){cin >> s1>>s2;l1 = s1.length();l2 = s2.length();c1 = s1[l1-1];c2 = s2[l2-1];//cout << c1 << " " << c2 << endl;if (c1==c2){if (c1 == 'M'){cout << "=" << endl;}if (c1 == 'S'){if (l1 == l2){cout << "=" << endl;}else if (l1 > l2){cout << "<" << endl;}else{cout << ">" << endl;}}if (c1 == 'L'){if (l1 == l2){cout << "=" << endl;}else if (l1 < l2){cout << "<" << endl;}else{cout << ">" << endl;}}}if (c1 == 'L' && (c2 == 'M' || c2 =='S')){cout << ">" << endl;}if (c1 == 'S' && (c2 == 'M' || c2 == 'L')){cout << "<" << endl;}if (c1 == 'M'){if (c2 == 'S'){cout << ">" << endl;}if (c2 == 'L'){cout << "<" << endl;}}//cout << c1 << " " << c2 << endl;}
}

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