<gh_stars>0
# problem18.py


r = [ ]
file = open("problem18.txt", "r")
for x in file:
    r.append([int(i) for i in x.split(" ")])

for i, j in [(i, j) for i in range(len(r)-2,-1,-1) for j in range(i + 1)]:
    r[i][j] += max([r[i+1][j], r[i+1][j+1]])

print(r[0][0])

# problem18.py


r = [ ]
file = open("problem18.txt", "r")
for x in file:
    r.append([int(i) for i in x.split(" ")])

for i, j in [(i, j) for i in range(len(r)-2,-1,-1) for j in range(i + 1)]:
    r[i][j] += max([r[i+1][j], r[i+1][j+1]])

print(r[0][0])
# problem18.py