5-18) (Display four patterns using loops) Ask the user to enter an integer to set a limit for nested loops and generate the following four patterns:

Enteranintegertobealimitofthepattern:5 PatternA: 1 12 123 1234 12345 PatternB: 12345 1234 123 12 1 PatternC: 1 21 321 4321 54321 PatternD: 12345 1234 123 12 1