there are two time period:
c_period = (c_start, c_end)
r_period = (r_start, r_end)

c_start, c_end, r_start, r_end are 6-digit strings representing the amount of 0.1 second units, for example:

'004521' means 4521 * 0.1 seconds = 452.1 second

write a python to check, whether c_period and r_period has overlap more than 3 seconds  Your answer should have exactly 3 paragraphs. Make sure that the first paragraph starts with the word "identity" and that each paragraph is separated by two new lines.
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