c-gcc, 160 bytes

Result

AC

Duration

553ms

Code [DL]

z=12;a[12];s,p,q;main(){for(;z--;)scanf("%d",a+z);for(z=9;z--;)a[z]-=a[9+z%3];for(z=3;z--;)s+=a[z]*=a[p=3+-~z%3]*a[q=6+(z+2)%3]-a[q-3]*a[p+3];printf("%d",s/6);}

stdin

21 99 41
03 59 48
22 53 17
52 23 17

stdout

8535

stderr

/tmp/code.c:1:1: warning: data definition has no type or storage class
 z=12;a[12];s,p,q;main(){for(;z--;)scanf("%d",a+z);for(z=9;z--;)a[z]-=a[9+z%3];for(z=3;z--;)s+=a[z]*=a[p=3+-~z%3]*a[q=6+(z+2)%3]-a[q-3]*a[p+3];printf("%d",s/6);}
 ^
/tmp/code.c:1:1: warning: type defaults to 'int' in declaration of 'z' [-Wimplicit-int]
/tmp/code.c:1:6: warning: data definition has no type or storage class
 z=12;a[12];s,p,q;main(){for(;z--;)scanf("%d",a+z);for(z=9;z--;)a[z]-=a[9+z%3];for(z=3;z--;)s+=a[z]*=a[p=3+-~z%3]*a[q=6+(z+2)%3]-a[q-3]*a[p+3];printf("%d",s/6);}
      ^
/tmp/code.c:1:6: warning: type defaults to 'int' in declaration of 'a' [-Wimplicit-int]
/tmp/code.c:1:12: warning: data definition has no type or storage class
 z=12;a[12];s,p,q;main(){for(;z--;)scanf("%d",a+z);for(z=9;z--;)a[z]-=a[9+z%3];for(z=3;z--;)s+=a[z]*=a[p=3+-~z%3]*a[q=6+(z+2)%3]-a[q-3]*a[p+3];printf("%d",s/6);}
            ^
/tmp/code.c:1:12: warning: type defaults to 'int' in declaration of 's' [-Wimplicit-int]
/tmp/code.c:1:14: warning: type defaults to 'int' in declaration of 'p' [-Wimplicit-int]
 z=12;a[12];s,p,q;main(){for(;z--;)scanf("%d",a+z);for(z=9;z--;)a[z]-=a[9+z%3];for(z=3;z--;)s+=a[z]*=a[p=3+-~z%3]*a[q=6+(z+2)%3]-a[q-3]*a[p+3];printf("%d",s/6);}
              ^
/tmp/code.c:1:16: warning: type defaults to 'int' in declaration of 'q' [-Wimplicit-int]
 z=12;a[12];s,p,q;main(){for(;z--;)scanf("%d",a+z);for(z=9;z--;)a[z]-=a[9+z%3];for(z=3;z--;)s+=a[z]*=a[p=3+-~z%3]*a[q=6+(z+2)%3]-a[q-3]*a[p+3];printf("%d",s/6);}
                ^
/tmp/code.c:1:18: warning: return type defaults to 'int' [-Wimplicit-int]
 z=12;a[12];s,p,q;main(){for(;z--;)scanf("%d",a+z);for(z=9;z--;)a[z]-=a[9+z%3];for(z=3;z--;)s+=a[z]*=a[p=3+-~z%3]*a[q=6+(z+2)%3]-a[q-3]*a[p+3];printf("%d",s/6);}
                  ^~~~
/tmp/code.c: In function 'main':
/tmp/code.c:1:35: warning: implicit declaration of function 'scanf' [-Wimplicit-function-declaration]
 z=12;a[12];s,p,q;main(){for(;z--;)scanf("%d",a+z);for(z=9;z--;)a[z]-=a[9+z%3];for(z=3;z--;)s+=a[z]*=a[p=3+-~z%3]*a[q=6+(z+2)%3]-a[q-3]*a[p+3];printf("%d",s/6);}
                                   ^~~~~
/tmp/code.c:1:35: warning: incompatible implicit declaration of built-in function 'scanf'
/tmp/code.c:1:35: note: include '<stdio.h>' or provide a declaration of 'scanf'
/tmp/code.c:1:104: warning: operation on 'p' may be undefined [-Wsequence-point]
 z=12;a[12];s,p,q;main(){for(;z--;)scanf("%d",a+z);for(z=9;z--;)a[z]-=a[9+z%3];for(z=3;z--;)s+=a[z]*=a[p=3+-~z%3]*a[q=6+(z+2)%3]-a[q-3]*a[p+3];printf("%d",s/6);}
                                                                                                       ~^~~~~~~~
/tmp/code.c:1:117: warning: operation on 'q' may be undefined [-Wsequence-point]
 z=12;a[12];s,p,q;main(){for(;z--;)scanf("%d",a+z);for(z=9;z--;)a[z]-=a[9+z%3];for(z=3;z--;)s+=a[z]*=a[p=3+-~z%3]*a[q=6+(z+2)%3]-a[q-3]*a[p+3];printf("%d",s/6);}
                                                                                                                    ~^~~~~~~~~~
/tmp/code.c:1:143: warning: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
 z=12;a[12];s,p,q;main(){for(;z--;)scanf("%d",a+z);for(z=9;z--;)a[z]-=a[9+z%3];for(z=3;z--;)s+=a[z]*=a[p=3+-~z%3]*a[q=6+(z+2)%3]-a[q-3]*a[p+3];printf("%d",s/6);}
                                                                                                                                               ^~~~~~
/tmp/code.c:1:143: warning: incompatible implicit declaration of built-in function 'printf'
/tmp/code.c:1:143: note: include '<stdio.h>' or provide a declaration of 'printf'

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