def AT(seq):
    at = sum(seq.count(x) for x in ["a", "t", "A", "T"])
    try:
        c = round(at / len(seq), 2)
        return c
    except ZeroDivisionError:
        return 0.0
 
def GC(seq):
    gc = sum(seq.count(h) for h in ["g", "c", "G", "C"])
    try:
        y = round((gc / len(seq))*100, 2)
        return y
    except ZeroDivisionError:
        return 0.0
 
dna_seq = "GTCTCTACCTTGACAGACCTCCAGCCGTACATGCGACAGTTCGTGGCTCACCTGCAGGAGACCAGCCCGCTGAGGGATGCCGTCGTCATCGAGCAG"
at_content = AT(dna_seq)
print(at_content)
gc_content = GC(dna_seq)
print(gc_content)

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