Write a program that keeps reading in integer values. If an input value is positive, store it in a vector. If the input value is negative, you will remove all existing values in your vector with the same absolute value. When 0 is read output the number of entries that remained in the vector and the sum of all entries. Then stop.

Sample Input:

2 4 4 3 -2 2 2 -4 0

Sample Output:

3 7