Symbols (enumerator) should have the same values:
Symbol a: (10) 10, 10, 10
Symbol b: (20) 20, 20
Symbol ab: (30) 30
Symbol c: (40) 40, 40, 40
Symbol d: (50) 50, 50, 50
Symbol cd: (60) 60, 60
Symbol acd: (70) 70
Casting/Upcasting:
Symbol a: (10) 10, 10, 10
Symbol b: (20) 20, 20
Symbol ab: (30) 30
Symbol c: (40) 40, 40, 40, 40, 40
Symbol d: (50) 50, 50, 50, 50
Symbol cd: (60) 60, 60
Symbol acd: (70) 70
Function Call:
Symbol a: (10) 10, 10
Symbol c: (40) 40, 40
Symbol d: (50) 50, 50
Symbol cd: (60) 60, 60
Symbol acd: (70) 70