Print Levelwise

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Given a binary tree, print the tree in level wise order.

For printing a node with data N, you need to follow the exact format -

N:L:x,R:y

wherer, N is data of any node present in the binary tree. x and y are the values of left and right child of node N. Print -1. if any child is null.

There is no space in between.

You need to print all nodes in the level order form in different lines.

Input format :
Elements in level order form (separated by space)
(If any node does not have left or right child, take -1 in its place)
Sample Input :
8 3 10 1 6 -1 14 -1 -1 4 7 13 -1 -1 -1 -1 -1 -1 -1
Sample Output :
8:L:3,R:10
3:L:1,R:6
10:L:-1,R:14
1:L:-1,R:-1
6:L:4,R:7
14:L:13,R:-1
4:L:-1,R:-1
7:L:-1,R:-1
13:L:-1,R:-1

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