from datetime import datetime, timedelta

# Example 1: Parsing a string into a datetime object
dt_str = "2023-06-16 10:30:45"
dt_obj = datetime.strptime(dt_str, "%Y-%m-%d %H:%M:%S")
print("Example 1:", dt_obj)  # Output: Example 1: 2023-06-16 10:30:45

# Example 2: Formatting a datetime object into a string
dt_str = dt_obj.strftime("%Y/%m/%d %I:%M %p")
print("Example 2:", dt_str)  # Output: Example 2: 2023/06/16 10:30 AM

# Example 3: Performing arithmetic operations on datetime objects
future_dt = dt_obj + timedelta(days=7, hours=3)
print("Example 3:", future_dt)  # Output: Example 3: 2023-06-23 13:30:45

past_dt = dt_obj - timedelta(weeks=2, minutes=15)
print("Example 3 (continued):", past_dt)  # Output: Example 3 (continued): 2023-06-02 10:15:45

time_diff = future_dt - dt_obj
print("Example 3 (continued):", time_diff)  # Output: Example 3 (continued): 7 days, 3:00:00

# Example 4: Comparing datetime objects
dt1 = datetime(2023, 6, 16, 10, 30)
dt2 = datetime(2023, 6, 16, 11, 15)

print("Example 4:")
print(dt1 < dt2)  # Output: True
print(dt1 == dt2)  # Output: False
print(dt1 > dt2)  # Output: False