0_0_2072987_12076.c:13: error: syntax error before "int"
0_0_2072987_12076.c:13: error: syntax error before "a"
0_0_2072987_12076.c: In function `legal':
0_0_2072987_12076.c:14: error: `a' undeclared (first use in this function)
0_0_2072987_12076.c:14: error: (Each undeclared identifier is reported only once
0_0_2072987_12076.c:14: error: for each function it appears in.)
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