import math
def main():

    inp = [input() for i in range(3)]

    long = [int(inp[0]), int(inp[1])]

    def keisan(inp):
        X = abs(int(inp[0]))
        Y = abs(int(inp[1]))
        L = int(inp[2])

        count1 = math.ceil(X/L)
        count2 = math.ceil(Y/L)
        print(count1)
        print(count2)

        total = count1 + count2
        return total
    
    if int(inp[0]) > 0 and int(inp[1]) > 0 or int(inp[0]) < 0 and int(inp[1]) > 0:
        a = 1
    elif abs(int(inp[0])) == 0 and int(inp[1]) > 0:
        a = 0
    elif int(inp[0]) <= 0 and int(inp[1]) < 0 or int(inp[0]) > 0 and int(inp[1]) < 0  :
        a = 2
    print('a:', a)

    ans = a + keisan(inp)
    print(ans)

if __name__ == '__main__':
    main()