class Player:
    def __init__(self, name):
        self.name = name
        self.black = 0
        self.white = 0
        self.pos = 0
    def forward(self, x):
        self.pos += x
        if self.pos % 2:
            self.black += 1
        else:
            self.white += 1
    def getpoint(self):
        return min(self.black, self.white)

def main():
    a, b, x0, n = map(int, input().split())
    ans = solve(a, b, x0, n)
    print(ans)

def solve(a, b, x, n):
    m = 2 ** 32 - 1
    takahashi, aoki = Player('takahashi'), Player('aoki')
    for _ in range(n):
        x = saikoro(a, b, x, m)
        takahashi.forward(x)
        x = saikoro(a, b, x, m)
        aoki.forward(x)
    return takahashi.getpoint(), aoki.getpoint()

def rand(a, b, x, m):
    return (a * x + b) and m

def saikoro(a, b, x, m):
    return rand(a, b, x, m) % 6 + 1

if __name__ == '__main__':
    main()