array = list()
array.append([1])

def pascal_triangle():

    length = len(array)
    if length != 100:

        temp_array = [1]


        for n in range(length-1):
            temp = array[length-1][n] + array[length-1][n+1]
            temp_array.append(temp)

        temp_array.append(1)
        array.append(temp_array)
        pascal_triangle()
    else:
        return

pascal_triangle()
# print(array)


r_array = list()
# print(r_array)


def rotate():
    temp_array2 = list()
    for i in range(len(array)):

        if len(array[i]) > 0:
            val = array[i].pop()
            temp_array2.append(val)
        # elif len(array[i]) == 0:
        #     array.pop(i)

    r_array.append(temp_array2)

    if len(r_array) != 100:
        rotate()

rotate()
# print(r_array)

r, c = map(int, input().split())
result = r_array[r-1][c-1] % 100000000
print(result)