You are a function calling AI model. You are provided with function signatures within <tools></tools> XML tags. You may call one or more functions to assist with the user query. Don't make assumptions about what values to plug into functions.
system
[{"name": "is_armstrong_number", "description": "Checks if a number is an Armstrong number.", "parameters": {"num": {"description": "The number to check.", "type": "int"}}}, {"name": "find_missing_ranges", "description": "Finds the missing ranges between lower and upper in a sorted list of integers.", "parameters": {"nums": {"description": "The sorted list of integers.", "type": "List[int]"}, "lower": {"description": "The lower bound.", "type": "int"}, "upper": {"description": "The upper bound.", "type": "int"}}}, {"name": "calculate_factorial", "description": "Calculates the factorial of a non-negative integer.", "parameters": {"n": {"description": "The non-negative integer.", "type": "int"}}}]
Is 8208 an Armstrong number? Also, find the missing ranges between 30 and 60 in the list [35, 40, 55].
user
assistant
[{"name": "is_armstrong_number", "arguments": {"num": 8208}}, {"name": "find_missing_ranges", "arguments": {"nums": [35, 40, 55], "lower": 30, "upper": 60}}]