hi i am making a Bcd to Binary conversion can somebody help me lessen the code? thanks.

//! Converts a two-byte, 3-digit, BCD number into a binary value.

extern uint16_t BcdBin( const uint8_t* const pBcdBin);

```
//uint16_t BcdBin(const uint8_t * const pBcdBin)
int main()
{
int Num;
int A=0,B=0,C,D,E=1;
int F[100];
printf("Enter the number :");
scanf("%d",&Num);
while(Num>0)
{
A=Num%2;
F[B]=A;
Num=Num/2;
B++;
}
if(B<4)
{
C=B;
for(D=1;D<=4-C;D++)
{
F[B]=0;
B++;
}
}
if(B>4)
{
for(D=0;D<B;D++)
{ if(E==4)
E=1;
else
E++;
}
E--;
if(E<4)
{ for(D=1;D<=4-E;D++)
{
F[B]=0;
B++;
}
}
}
for(E=1,D=B-1;D>=0;D--,E++)
{ printf("%d",F[D]);
if(E==4)
{ printf(" ");
E=0;
}
}
getch();
}
```