n = int(input()) for i in range(n): stack = [] pp = input() for p in pp : if stack == []: stack.append(p) elif p == 'o' and stack[-1] == 'o': stack.pop() if stack ==[]: stack.append('O') elif stack[-1] == 'O': stack.pop() else: stack.append('O') elif p =='o': stack.append(p) elif p == 'O' and stack[-1] == 'O': stack.pop() else: stack.append('O') print(''.join(stack))