input: Write a function to print the following pattern: for each number from 1 to 5, print the numbers from 1 to the current number on a single line. Each line should contain the numbers from 1 up to the current number.
  
  
  def print_number_pattern():
      for i in range(1,6):
          for j in range(1,i+1):
              print(j, end="")
          print()
  
  print_number_pattern()
  
  
  ### Test Case:
  
  print_number_pattern()
  
  
  ### Expected Output:
  
  1
  12
  123
  1234
  12345
  
output: def print_number_pattern():
      for i in range(1,6):
          for j in range(1,i+1):
              print(j, end="")
          print()