0_0_18774801_21979.c: In function 'main':
0_0_18774801_21979.c:19:26: error: 'a' undeclared (first use in this function)
printf("\n");a
^
0_0_18774801_21979.c:19:26: note: each undeclared identifier is reported only once for each function it appears in
0_0_18774801_21979.c:20:13: error: expected ';' before 'break'
break;
^
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