for _ in range(int(input())):
x,y = map(int, input().split())
z = input()
countR = z.count('R')
countL = z.count('L')
countU = z.count('U')
countD = z.count('D')
if x > 0:
if y > 0:
if countR >= x and countU >= y:
print('YES')
else:
print('NO')
else:
if countR >= x and countD >= abs(y):
print('YES')
else:
print('NO')
else:
if y > 0:
if countL >= abs(x) and countU >= y:
print('YES')
else:
print('NO')
else:
if countL >= abs(x) and countD >= abs(y):
print('YES')
else:
print('NO')1032. Stream of Characters | 987. Vertical Order Traversal of a Binary Tree |
952. Largest Component Size by Common Factor | 212. Word Search II |
174. Dungeon Game | 127. Word Ladder |
123. Best Time to Buy and Sell Stock III | 85. Maximal Rectangle |
84. Largest Rectangle in Histogram | 60. Permutation Sequence |
42. Trapping Rain Water | 32. Longest Valid Parentheses |
Cutting a material | Bubble Sort |
Number of triangles | AND path in a binary tree |
Factorial equations | Removal of vertices |
Happy segments | Cyclic shifts |
Zoos | Build a graph |
Almost correct bracket sequence | Count of integers |
Differences of the permutations | Doctor's Secret |
Back to School | I am Easy |
Teddy and Tweety | Partitioning binary strings |