0_0_6036314_650.c: In function `main':
0_0_6036314_650.c:2: error: `a' undeclared (first use in this function)
0_0_6036314_650.c:2: error: (Each undeclared identifier is reported only once
0_0_6036314_650.c:2: error: for each function it appears in.)
0_0_6036314_650.c:2: error: `b' undeclared (first use in this function)
0_0_6036314_650.c: At top level:
0_0_6036314_650.c:2: error: syntax error at end of input
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