0_0_27772457_31044.c: In function 'main':
0_0_27772457_31044.c:6:71: error: 'b' undeclared (first use in this function)
while((scanf("%c",&a[0])&&scanf("%c",&a[1])&&scanf("%c",&a[2])),a,b,c)
^
0_0_27772457_31044.c:6:71: note: each undeclared identifier is reported only once for each function it appears in
0_0_27772457_31044.c:6:73: error: 'c' undeclared (first use in this function)
while((scanf("%c",&a[0])&&scanf("%c",&a[1])&&scanf("%c",&a[2])),a,b,c)
^
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