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import sys f=input().strip() k=[x.strip().split() for x in sys.stdin.readlines()] print(k) r=0 for i,y in k: if int(y)-int(i)>=2: r+=1 else: pass print(r)
3 1 10 2 7 1 3
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Absolute running time: 0.17 sec, cpu time: 0.03 sec, memory peak: 8 Mb, absolute service time: 0,24 sec
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[['1', '10'], ['2', '7'], ['1', '3']] 3