


def dbl_linear(n):
    ranked_arr = []
    flag_arr = [0 for i in range(1000000000)]
    flag_arr[1] = 1
    for i in xrange(1,1000000000):
        print i
        return


dbl_linear(10)
dbl_linear(20)
dbl_linear(30)
dbl_linear(50)

"""
def testing(actual, expected):
    assert actual == expected

testing(dbl_linear(10), 22)
testing(dbl_linear(20), 57)
testing(dbl_linear(30), 91)
testing(dbl_linear(50), 175)
"""
