376A - Lever - CodeForces Solution

string = input()
first = string.split('^')[0][::-1]
second = string.split('^')[1]
left = 0
right = 0
for i in range(len(first)):
    if first[i].isdigit():
        left += (i+1) * int(first[i])
for i in range(len(second)):
    if second[i].isdigit():
        right += (i+1) * int(second[i])
if left == right:
    print('balance')
elif left > right:
    print('left')
else:
    print('right')