@ ProgramNode (location: (0...23))
├── locals: []
└── statements:
    @ StatementsNode (location: (0...23))
    └── body: (length: 4)
        ├── @ ParenthesesNode (location: (0...5))
        │   ├── body:
        │   │   @ StatementsNode (location: (1...4))
        │   │   └── body: (length: 1)
        │   │       └── @ RangeNode (location: (1...4))
        │   │           ├── left:
        │   │           │   @ IntegerNode (location: (1...2))
        │   │           │   └── flags: decimal
        │   │           ├── right: ∅
        │   │           ├── operator_loc: (2...4) = ".."
        │   │           └── flags: ∅
        │   ├── opening_loc: (0...1) = "("
        │   └── closing_loc: (4...5) = ")"
        ├── @ RangeNode (location: (6...10))
        │   ├── left:
        │   │   @ IntegerNode (location: (6...7))
        │   │   └── flags: decimal
        │   ├── right:
        │   │   @ IntegerNode (location: (9...10))
        │   │   └── flags: decimal
        │   ├── operator_loc: (7...9) = ".."
        │   └── flags: ∅
        ├── @ ParenthesesNode (location: (11...17))
        │   ├── body:
        │   │   @ StatementsNode (location: (12...16))
        │   │   └── body: (length: 1)
        │   │       └── @ RangeNode (location: (12...16))
        │   │           ├── left:
        │   │           │   @ IntegerNode (location: (12...13))
        │   │           │   └── flags: decimal
        │   │           ├── right: ∅
        │   │           ├── operator_loc: (13...16) = "..."
        │   │           └── flags: exclude_end
        │   ├── opening_loc: (11...12) = "("
        │   └── closing_loc: (16...17) = ")"
        └── @ RangeNode (location: (18...23))
            ├── left:
            │   @ IntegerNode (location: (18...19))
            │   └── flags: decimal
            ├── right:
            │   @ IntegerNode (location: (22...23))
            │   └── flags: decimal
            ├── operator_loc: (19...22) = "..."
            └── flags: exclude_end
