範例ㄧ:
400000009+500000000+300000002=1200000011
Average:400000003.666667
範例二:
7+100000000+12=100000019
Average:33333339.666667
範例三:
499999999+2+0=500000001
Average:166666667.000000
範例四:
0+17+500000000=500000017
Average:166666672.333333
範例五:
0+0+0=0
Average: 0.000000
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