montaro

__author__ = 'arefaey'


def list_equilibrium(l):
    s = sum(l)
    right_sum = s
    left_sum = 0
    for i in range(len(l)):
        elem = l[i]
        right_sum = right_sum - elem

montaro

__author__ = 'arefaey'


def rotate(image_matrix):
    result = []
    n = len(image_matrix)
    for i in range(n):
        new_row = []
        for j in range(n):
            new_row.append(image_matrix[n - j - 1][i])