0_0_20676186_7738.cpp:4:11: error: '::main' must return 'int'
void main()
^
In file included from 0_0_20676186_7738.cpp:1:0:
0_0_20676186_7738.cpp: In function 'int main()':
0_0_20676186_7738.cpp:9:20: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
while(gets(a)!=EOF)
^
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