import sys





def solve():

    readline = sys.stdin.buffer.readline

    mod = 10 ** 9 + 7

    n, m = list(map(int, readline().split()))

    t1 = n - m

    t2 = m

    print((int((t1 * 100 + t2 * 1900) / (1 / 2) ** t2)))





if __name__ == '__main__':

    solve()

import sys





def solve():

    readline = sys.stdin.buffer.readline

    mod = 10 ** 9 + 7

    n, m = list(map(int, readline().split()))

    print((1900 * m * 2 ** m + 100 * (n - m) * 2 ** m))





if __name__ == '__main__':

    solve()

import sys


def solve():
    readline = sys.stdin.buffer.readline
    mod = 10**9 + 7
    n, m = list(map(int, readline().split()))
    t1 = n - m
    t2 = m
    print((int((t1 * 100 + t2 * 1900) / (1 / 2) ** t2)))


if __name__ == "__main__":
    solve()

import sys


def solve():
    readline = sys.stdin.buffer.readline
    mod = 10**9 + 7
    n, m = list(map(int, readline().split()))
    print((1900 * m * 2**m + 100 * (n - m) * 2**m))


if __name__ == "__main__":
    solve()

-    t1 = n - m -    t2 = m -    print((int((t1 * 100 + t2 * 1900) / (1 / 2) ** t2))) +    print((1900 * m * 2**m + 100 * (n - m) * 2**m))