Problem: Notes

Template in C

Constraints

* 1 ≤ n ≤ 100000
* 1 ≤ q ≤ 1000
* 1 ≤ timei ≤ 50000
* 1 ≤ length of namei ≤ 10
* 1 ≤ Sum of timei ≤ 1000000

Input

n q
name1 time1
name2 time2
...
namen timen


In the first line the number of processes n and the quantum q are given separated by a single space.

In the following n lines, names and times for the n processes are given. namei and timei are separated by a single space.

Output

For each process, prints its name and the time the process finished in order.

Example

Input

5 100
p1 150
p2 80
p3 200
p4 350
p5 20


Output

p2 180
p5 400
p1 450
p3 550
p4 800

Solution (in PYTHON3):

Solution:
n,q = map(int,input().split())
a = []
for i in range(n):
  a.append(list(input().split()))
  a[i][1] = int(a[i][1])
time = 0
while a:
  if a[0][1] > q:
    time += q
    a[0][1] -= q
    a.append([a[0][0],a[0][1]])
    del a[0]
  else:
    time += a[0][1]
    print(a[0][0] + ' ' + str(time))
    del a[0]