3442.Pair of Numbers

Time Limit: 1s Memory Limit: 256MB

Simon has an array a1,a2,...,an, consisting of n positive integers. Today Simon asked you to find a pair of integers l,r (1 \le l \le r \le n), such that the following conditions hold:
there is integer j (l \le j \le r), such that all integers al,al+1,...,ar are divisible by aj; value r-l takes the maximum value among all pairs for which condition 1 is true;
Help Simon, find the required pair of numbers (l,r). If there are multiple required pairs find all of them.

Input Format(From the terminal/stdin)

The first line contains integer n (1 \le n \le 3 \cdot 105).

The second line contains n space-separated integers a1,a2,...,an (1 \le ai \le 106).

Output Format(To the terminal/stdout)

Print two integers in the first line - the number of required pairs and the maximum value of r-l. On the following line print all l values from optimal pairs in increasing order.

Sample Input 1

Copy
5
4 6 9 3 6
 \n
 · · · · \n

Sample Output 1

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1 3
2 
 · \n
 \n

Sample Input 2

Copy
5
1 3 5 7 9
 \n
 · · · · \n

Sample Output 2

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1 4
1 
 · \n
 \n

Sample Input 3

Copy
5
2 3 5 7 11
 \n
 · · · ·  \n

Sample Output 3

Copy
5 0
1 2 3 4 5 
 · \n
 · · · · \n

Hints

In the first sample the pair of numbers is right, as numbers 6,9,3 are divisible by 3.

In the second sample all numbers are divisible by number 1.

In the third sample all numbers are prime, so conditions 1 and 2 are true only for pairs of numbers (1,1), (2,2), (3,3), (4,4), (5,5).

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