from decimal import *


def euler_080():
    # XXX: totally cheated by using decimal library.
    def strsum(s):
        return sum(map(int, s))

    getcontext().prec = 200
    r = 0
    for n in range(1, 101):
        b = str(Decimal(n).sqrt()).replace(".", "")[:100]
        if len(b) == 100:
            r += strsum(b)
    return r


if __name__ == "__main__":
    print("e080.py: " + str(euler_080()))
    assert(euler_080() == 40886)