t = int(input())
c = input()
s=[]
for i in range(t):
if c[i]=='.':
s.append('B')
else:
s.append(c[i])
print('YES')
for i in range(len(s)):
print(s[i], end='')
1200. Minimum Absolute Difference | 1619B - Squares and Cubes |
1619A - Square String | 1629B - GCD Arrays |
1629A - Download More RAM | 1629C - Meximum Array |
1629D - Peculiar Movie Preferences | 1629E - Grid Xor |
1629F1 - Game on Sum (Easy Version) | 2148. Count Elements With Strictly Smaller and Greater Elements |
2149. Rearrange Array Elements by Sign | 2150. Find All Lonely Numbers in the Array |
2151. Maximum Good People Based on Statements | 2144. Minimum Cost of Buying Candies With Discount |
Non empty subsets | 1630A - And Matching |
1630B - Range and Partition | 1630C - Paint the Middle |
1630D - Flipping Range | 1328A - Divisibility Problem |
339A - Helpful Maths | 4A - Watermelon |
476A - Dreamoon and Stairs | 1409A - Yet Another Two Integers Problem |
977A - Wrong Subtraction | 263A - Beautiful Matrix |
180C - Letter | 151A - Soft Drinking |
1352A - Sum of Round Numbers | 281A - Word Capitalization |