#!/usr/bin/env python3 import sys def walk(instructions): x = y = 0 dx = 0 dy = -1 yield x, y for turn, distance in instructions: if turn == 'L': dy, dx = -dx, dy elif turn == 'R': dy, dx = dx, -dy for i in range(distance): x += dx y += dy yield x, y def dist(x, y): return abs(x) + abs(y) instructions = [(w[0], int(w[1:])) for w in sys.stdin.readline().split(', ')] # part 1 for pos in walk(instructions): pass print(dist(*pos)) # part 2 visited = set() for pos in walk(instructions): if pos in visited: break visited.add(pos) print(dist(*pos))