2.py

i = """DLDRDDDLULDRRLUDDLDUURDRDUULDRDDRRLDLLUUDDLLRLRDRUURLUDURDDRURLUDDUULUURLLRRRRUDULUDLULLUURRLLRRURRUDUUURRLUUUDURDLLLDULDRLRDDDUDDUURLRRRURULLUDDUULDRRRDDLRLUDDRRDLRDURLRURUDDUULDDUUDDURRLUURRULRRLDLULLRLRUULDUDDLLLRDDULRUDURRDUUDUUDDUULULURDLUDRURDLUUDRDUURDDDRDRLDLDRURRLLRURURLLULLRRUULRRRRDLDULDDLRRRULRURRDURUDUUULDUUDRLDDLDUDDRULLUDUULRRRDRRDRDULDLURDDURLRUDLURLUDDDRLLURUUUUUUURUULDUUDDRLULRUDURRDLDUULLRLULLURDDDDDLRRDLRLLDDUDRRRDDURDLRRUDDUDLRRRDDURULRURRRLDRDUDLD
LRRDUDUUUDRRURRDUUULULUDDLLDRRRUDDUULRRDRUDRLLRLRULRRDUUDRLDURUDLLLDRRDLRLUUDRUDRRRUDRRRULDRRLLRDDDLLRDDRULRLLRUDRLLLULDLDDRDRUUUUUULURLLRUDRDRLLULLRUUURRDRULULUDLDURRUUDURLLUDRDLDDULUDLRDDRLRLURULDRURRRRURRDDUDRULUUUDDDRULRULDLLURUUULRDDLRUURLRLDLUULLURDRDDDUDDDRLDRDLLDRDDDDURLUUULDDRURULUDDURDRDRLULDULURDUURDRLLUUUULRULUUDRLLDDRRURUURLDLLRRRDLRURDDLDLDRLRRDLDURULDDLULRRRUUDLRDUURDURLURDDLDLRURLLLDRDULDDRUDDULDDRRLDLRDRDLDUUDLUULRLUDUUDUUUULDURULRRUDULURLRLDRLULLLDUDLLLRUDURDDDURLDDLRLRRDLUDLDDDDLULDRLDUUULDRRDDLRUULDLULUUURUDDRLDDDULRUDRURUURUUURRULRURDURLLRLLUULUULURDRLLUDDLU
LLDURDUDRLURUDRLRLUDDRRURDULULDDUDUULRRLRLRRDRDRDURRLRLURRLRUDULLUULLURUDDRLDDDRURLUUDLDURRDURDDLUULRDURRUUURLRRURRDRDRDURRRLULLDRUDLRUDURDRDDLLULLULRRUDULDDRDRRDLLLDLURLRDRDLUDDRLDDLDRULDURLLRLDRDLUDDDDLDUUDRLLRRRRLDDRRLRLURLLRLLUULLDUUDLRDRRRDRDLLDULLDRLDDUDRDDRURRDDLRDLRRUUDRRRRDURUULDRDDURLURRRRURRDRRULULURULUUUDRRRLDLLLDDRULRUDDURDRLDDRDLULLLRURUDRLRDDLDLRRRUURDURLDURRUUDDLRDRUUUURDLRLULRUUDRLDLULLULUURURDULUDUDRRRLLRLURLLDLRRURURRUDLUDDDDRDUDUDUUUULLDRDLLLLUUUUDRLRLUDURLLUDRUUDLLURUULDDDDULUUURLLDL
DLULLRDLRRLLLDLRRURRDRURDRUUULDDRLURURRDLRRULUUDDRLRRLDULRRUUDUULDDDUDLLDLURDRLLULLUUULLDURDRRRDDLRDUDRRRLRLDRRLRLULDDUDURRRLDLRULDULDDUDDRULDLDRDRDDRUDRUDURRRRUUDUDRLDURLDLRRUURRDDUDLLDUDRRURRLRRRRRLDUDDRLLLURUDRRUDRLRDUDUUUUUDURULLDUUDLRUUULDUUURURLUUDULDURUDDDLRRRDDRRDLRULLLRDDRLRLUULDUUULLLLDLRURLRRDURRLDLLLDURDLLUDDDLLDDURDDULURDRRRDDDLDDURRULUUDDLULLURULUULDLDDLUDRURURULUDDULRDRLDRRRUUUURUULDRLRRURRLULULURLLDRLRLURULRDDDULRDDLUR
RURRULLRRDLDUDDRRULUDLURLRRDDRDULLLUUDDDRDDRRULLLDRLRUULRRUDLDLLLRLLULDRLDDDLLDDULLDRLULUUUURRRLLDRLDLDLDDLUDULRDDLLRLLLULLUDDRDDUUUUDLDLRRDDRDLUDURRUURUURDULLLLLULRRLDRLRDLUURDUUDLDRURURLLDRRRLLLLRDLDURRLRRLLRUUDDUULLRLUDLRRRRRURUDDURULURRUULRDDULUUDUUDDRDDDDDUUUDDDRRLDDRRDDUUULDURLDULURDRDLLURDULRUDRUULUULLRRRRLRUUDDUDLDURURLRRRULRDRRUDDRDDRLRRRLRURRRUULULLLUULLLULLUDLRDLDURRURDLDLRDUULDRLLRRLDUDDUULULR"""

class Keypad():
    '''
    1 2 3
    4 5 6
    7 8 9
    '''
    def __init__(self):
        self.position = 5

    def R(self):
        if self.position+1 in [2, 3, 5, 6, 8, 9]:
            self.position += 1

    def L(self):
        if self.position-1 in [1, 2, 4, 5, 7, 8]:
            self.position -= 1

    def U(self):
        if self.position-3 in [1, 2, 3, 4, 5, 6]:
            self.position -= 3

    def D(self):
        if self.position+3 in [4, 5, 6, 7, 8, 9]:
            self.position += 3

    def process_line(self, line):
        for i in range(len(line)):
            self.process_move(line[i])

        print self.position

    def process_move(self, move):
        if move == 'R':
            self.R()
        elif move == 'L':
            self.L()
        elif move == 'U':
            self.U()
        elif move == 'D':
            self.D()

class Keypad2(Keypad):
    '''
        1
      2 3 4
    5 6 7 8 9
      A B C
        D
    '''
    def __init__(self):
        self.position = 7
        self.go_right = {5:6, 2:3, 6:7, 'A':'B', 3:4, 7:8, 'B':'C', 8:9}
        self.go_left = dict((v,k) for k,v in self.go_right.iteritems())
        self.go_up = {'D':'B', 'A':6, 'B':7, 'C':8, 6:2, 7:3, 8:4, 3:1}
        self.go_down = dict((v,k) for k,v in self.go_up.iteritems())

    def R(self):
        try:
            self.position = self.go_right[self.position]
        except:
            pass

    def L(self):
        try:
            self.position = self.go_left[self.position]
        except:
            pass

    def U(self):
        try:
            self.position = self.go_up[self.position]
        except:
            pass

    def D(self):
        try:
            self.position = self.go_down[self.position]
        except:
            pass


keypad = Keypad2()
for line in i.splitlines():
    keypad.process_line(line)