# Author:   James Tam

# Version: May 24, 2024
# * Added more debugging messages.
# * Modifier the implementation of the hard coded list to better
#   contrast with 'aGrid'

# Version: November 21, 2022
# Learning objective:
# * In the context of the append method knowing exactly what 'level'
#   (reference, whole list, row, element in a list (at a row/column)
#   that an instruction refers to.

aGrid = []
noRows = int(input("Number rows: "))
noColumns = int(input("Number columns: "))
#Create list
for r in range (0,noRows,1):
    aGrid.append ([])
    for c in range (0,noColumns,1):
        aGrid.append("*")
    #print(aGrid)

#print("# elements", len(aGrid))
#print("type of the list", type(aGrid))
#print(len(aGrid))
#print(len(aGrid[0]))

for r in range (0,noRows,1):
    aGrid.append ([])
    for c in range (0,noColumns,1):
        print(aGrid[r][c], end="")
    print()


"""
#Hard-coded 2D list
anotherGrid = [[1,2,3],
               [3,2,1]]

print("anotherGrid: type of information for 2nd element (1D list or string)", type(anotherGrid[1]))
print("aGrid: type of information for 2nd element (1D list or string)", type(anotherGrid[1]))
#Display list
for r in range (0,2,1):
   for c in range (0,3,1):
      print(anotherGrid[r][c], end="")
   print()

print("# elements", len(anotherGrid))
print("type of the list", type(anotherGrid))
print(len(anotherGrid))
print(len(anotherGrid[0]))
"""