题解

#include<bits/stdc++.h>
using namespace std;
int a,b[101],i,a1,b1,c1,j;
int main(){
    cin>>a;
    while(a){
    	b[i]=a%10;
        a/=10;
        i++;
    }
    i=8;
    while(j<3){
    	a1=a1*10+b[i];
        i--;
        j++;
    }while(j<6){
    	b1=b1*10+b[i];
        a/=10;
        i--;
        j++;
    }while(j<9){
    	c1=c1*10+b[i];
        i--;
        j++;
    }
    cout<<a1*b1*c1;
    return 0;
}