One effective method often used by programmers to comprehend the effect of code is "tracing". Tracing is hand-executing the code in the same sequence and manner that the computer would execute the program. Often, the changes made to variables in the code are recorded in a "trace table". Each row in the trace table records the values of the variables after a corresponding statement in the left hand column of the trace table has been hand-executed.

For example, for the code

holden = 2 ford = 13 mitsubishi = 5

a completed trace table would be:

	holden	ford	mitsubishi
holden = 2	2	-	-
ford = 13	2	13	-
mitsubishi = 5	2	13	5

Your task is to trace execution of the following Python code and keep track of variables alarm, level and threshold:

	alarm	level	threshold
level = 10	-	10	-
threshold = 10	-	10	10
alarm = 3	3	10	10
if level >= threshold:	-1012345678910100TrueFalse	-1012345678910100TrueFalse	-1012345678910100TrueFalse
if level 100:	-1012345678910100TrueFalse	-1012345678910100TrueFalse	-1012345678910100TrueFalse
alarm = 1	-1012345678910100TrueFalse	-1012345678910100TrueFalse	-1012345678910100TrueFalse
alarm = 2