a,b,c,d,e,N=map(int, input().split()) mod=10**9+7 if N==0: print(a%mod) exit() if N==1: print((a+b)%mod) exit() if N==2: ans=a+b+c*b+a*d+e print(ans%mod) exit() def matmul(A, B): Ah, Bh, Bw = len(A), len(B), len(B[0]) C = [[0 for _ in range(Bw)] for _ in range(Ah)] for i in range(Ah): for j in range(Bw): for k in range(Bh): C[i][j] += A[i][k] * B[k][j] % mod C[i][j] %= mod return C # Mのk乗を効率的に計算する def doubling(M, k): k -= 1 Mc = M.copy() while k > 0: if k & 1 == 1: Mc = matmul(Mc, M) M = matmul(M, M) # Mの(2のi乗)の乗 を計算する k >>= 1 return Mc M = [[c+1,-c+d,-d,e], [1,0,0,0],[0,1,0,0],[0,0,0,1]] F = [[a+b], [a],[0],[1]] Mn = doubling(M, N-1) G = matmul(Mn, F) print(G[0][0])