Write a program that reads a sequence of natural numbers and that prints, for each one, how many times it appears.
Input consists of a natural number , followed by natural numbers between 1000000000 and 1000001000 (both included).
For each number that appears in the sequence, print how many times it appears, following the format of the example. The output must be sorted in increasing order by .
Input
7 1000000001 1000000011 1000000011 1000000004 1000000004 1000000200 1000000004
Output
1000000001 : 1 1000000004 : 3 1000000011 : 2 1000000200 : 1