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fingerPoses = {'left':10, 'right':12}


def solution(numbers, hand):
    answer = ''
    for i in numbers:
        answer += judgeHand(i,hand)
    return answer


def judgeHand(number,hand): 
    if number in [1,4,7]:
        return press(number,'left')    
    elif number in [3,6,9]:
        return press(number,'right')    
    else:
        return press(number,ChooseHand(number,hand))


def press(number,usingHand):
    fingerPoses[usingHand] = number
    if usingHand == 'left':
        return 'L'
    elif usingHand == 'right':
        return 'R'


def ChooseHand(number,hand):
    traget_pos = CalcPos(number)
    left_pos = CalcPos(fingerPoses['left'])
    right_pos = CalcPos(fingerPoses['right'])     

    if CalcDistance(right_pos, traget_pos) < CalcDistance(left_pos, traget_pos):
        return 'right'
    elif CalcDistance(left_pos, traget_pos) < CalcDistance(right_pos, traget_pos):
        return 'left'
    else:
        return hand


def CalcPos(num):
    if num == 0:
        num = 11

    if num%3 == 0:
        x = 3
    else:
        x = num%3        
    y = (num+2)//3   
    pos_list = [x,y]  

    return pos_list


def CalcDistance(list_a, list_b):
    distance = 0
    for i in range(2):
        distance += abs(list_b[i] - list_a[i])
    return distance