import sys
input = sys.stdin.readline

N,K,seed,a,b,m=map(int,input().split())

F=[seed]

for i in range(2*N-1):
    F.append((F[-1]*a+b)%m)

V=[[],[],[]]

for i in range(N):
    w=F[i]%3+1
    v=F[i+N]*w

    V[w-1].append(v)
    
for i in range(3):
    V[i].sort()

ANS=0
for i in range(K):
    for j in range(3):
        if V[j]==[]:
            V[j]=[0]

    v3=V[2][-1]
    v12=V[0][-1]+V[1][-1]
    v1=0

    for j in range(3):
        if len(V[0])-1-j>=0:
            v1+=V[0][len(V[0])-1-j]

    MAX=max(v1,v12,v3)

    if MAX==v3:
        ANS+=V[2].pop()
    elif MAX==v12:
        ANS+=V[1].pop()
        ANS+=V[0].pop()
    else:
        ANS+=V[0].pop()
        if V[0]==[]:
            V[0].append(0)
        ANS+=V[0].pop()
        if V[0]==[]:
            V[0].append(0)
        ANS+=V[0].pop()
        if V[0]==[]:
            V[0].append(0)

print(ANS)