0_0_13899858_9806.cpp: In function 'int main()':
0_0_13899858_9806.cpp:5:2: error: '_int64' was not declared in this scope
_int64 n,a;
^
0_0_13899858_9806.cpp:8:23: error: 'n' was not declared in this scope
while(scanf("%I64d",&n)!=EOF)
^
0_0_13899858_9806.cpp:12:19: error: 'a' was not declared in this scope
scanf("%I64d",&a);
^
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