Note: I am using python I have a 2d list called data as the input: data = [ [2,4,3], [8,6,4], [2,0,17], [8,0,17], [8,3,7] ] I need to count how many times the first number of each list repeats and then store the information in a dictionary where the number is the key and the number of times it repeats is the value Output

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