Problem2493--Duff in Beach

2493: Duff in Beach

[Creator : ]
Time Limit : 2.000 sec  Memory Limit : 256 MiB

Description

time limit per test
2 seconds
memory limit per test
256 megabytes
input
standard input
output
standard output

While Duff was resting in the beach, she accidentally found a strange array b0,b1,...,bl-1 consisting of l positive integers. This array was strange because it was extremely long, but there was another (maybe shorter) array, a0,...,an-1 that b can be build from a with formula: bi=ai mod n where a mod b denoted the remainder of dividing a by b.

Duff is so curious, she wants to know the number of subsequences of b like bi1,bi2,...,bix (0≤i1<i2<...<ix<l), such that:

  • 1≤xk
  • For each 1≤jx-1,
  • For each 1≤jx-1, bijbij+1. i.e this subsequence is non-decreasing.

Since this number can be very large, she want to know it modulo 109+7.

Duff is not a programmer, and Malek is unavailable at the moment. So she asked for your help. Please tell her this number.

Input

The first line of input contains three integers, n,l and k (1≤n,k, n×k≤106 and 1≤l≤1018).

The second line contains n space separated integers, a0,a1,...,an-1 (1≤ai≤109 for each 0≤in-1).

Output

Print the answer modulo 1000000007 in one line.

Examples
Input
3 5 3
5 9 1
Output
10
Input
5 10 3
1 2 3 4 5
Output
25
Note

In the first sample case, . So all such sequences are: , , , , , , , , and .

Source/Category