Problem:
Score : 100 points

Problem Statement

This contest, AtCoder Beginner Contest, is abbreviated as ABC.

When we refer to a specific round of ABC, a three-digit number is appended after ABC. For example, ABC680 is the 680th round of ABC.

What is the abbreviation for the N-th round of ABC? Write a program to output the answer.

Constraints

100 ≤ N ≤ 999

Input

Input is given from Standard Input in the following format:

N

Output

Print the abbreviation for the N-th round of ABC.

Sample Input 1

100

Sample Output 1

ABC100

The 100th round of ABC is ABC100.

Sample Input 2

425

Sample Output 2

ABC425

Sample Input 3

999

Sample Output 3

ABC999

Solution in Python (3.4.3) (judge verdict: Wrong Answer)

k=int(input())
if k==0:
  for i in range(50):
    print(49-i,end=" ")
    print()
else:
  a=(k-1)//50
  b=k%50
  if b==0:
    for i in range(50):
      print(50+a-i)
      print()
  else:
    for i in range(50):
      b=b-1
      if b>=0:
        print(50+a-i)
      else:
        print(50+a-i-1)
      if i==49:
        print()