class SegmentTree:
    """
    https://qiita.com/dn6049949/items/afa12d5d079f518de368 から拝借しています。
    """

    def __init__(self, size, f=lambda x, y: max(x, y), default=0):
        self.size = 2 ** (size - 1).bit_length()
        self.default = default
        self.dat = [default] * (self.size * 2)
        self.f = f

    def initialize(self, A):
        for i, a in enumerate(A):
            self.dat[self.size + i] = a
        for i in range(self.size - 2, -1, -1):
            self.dat[i] = self.f(self.dat[2 * i + 1], self.dat[2 * i + 2])

    def update(self, i, x):
        i += self.size
        self.dat[i] = x
        while i > 0:
            i >>= 1
            self.dat[i] = self.f(self.dat[i * 2], self.dat[i * 2 + 1])

    def query(self, l, r):
        """半開区間[l,r)"""
        l += self.size
        r += self.size
        lres, rres = self.default, self.default
        while l < r:
            if l & 1:
                lres = self.f(lres, self.dat[l])
                l += 1

            if r & 1:
                r -= 1
                rres = self.f(self.dat[r], rres)
            l >>= 1
            r >>= 1
        res = self.f(lres, rres)
        return res


N, D, K = map(int, input().split())
S = SegmentTree(N + 1)
X = [int(input()) for _ in range(N)]
S.initialize([0] + X)

p_max = 0
lidx = 0
for i, x in enumerate(X, 1):
    M = S.query(i, min(i + D, N) + 1)
    profit = K * (M - x)
    if p_max < profit:
        p_max = profit
        lidx = i - 1
print(p_max)
if p_max:
    M = X[lidx] + p_max // K
    ridx = X[lidx:min(lidx + D + 1, N)].index(M) + lidx
    print(lidx, ridx)