mod = 10**9+7 class Bit: def __init__(self, n): self.size = n self.tree = [(0, 0) for _ in range(n+1)] self.tree[0] = (0, 1) def sum(self, i): s = (0, 1) while i > 0: if s[0] == self.tree[i][0]: s = (s[0], (self.tree[i][1] + s[1])%mod) elif s[0] < self.tree[i][0]: s = self.tree[i] i -= i & -i return s def add(self, i, x): while i <= self.size: if x[0] == self.tree[i][0]: self.tree[i] = (x[0], (self.tree[i][1] + x[1])%mod) elif x[0] > self.tree[i][0]: self.tree[i] = (x[0], x[1]) i += i & -i N, = map(int, input().split()) bs = list(map(int, input().split())) ids = sorted(list(set(bs))) x2i = dict() for i, x in enumerate(ids): i += 1 x2i[x] = i As = [x2i[b] for b in bs] #print(As) bit = Bit(N) for a in As: a0, co = bit.sum(a-1) # print(a, a0, co) bit.add(a, (a0+1, co)) print(bit.sum(N)[1]%mod)