#include <stdio.h>
int main(void) {
int a, b, c, d, f, sum;
b=a%10;
c=a/10%10;
d=a/100%10;
f=a/1000%10;
sum=b*c*d*f;
printf("%d*%d*%d*%d=%d", b
, c
, d
, f
, sum
); }
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