排列

#include<stdio.h>
int main()
{
    int arr[3] = {1,2,3};
    int a,b,c;
    int s;
    for(int i=0;i<3;i++)
    {
        a=arr[i%3];
        b=arr[(i+1)%3];
        c=arr[(i+2)%3];
        
        printf("%d %d %d\n",100*a+10*b+c,200*a+20*b+2*c,300*a+30*b+3*c);
    }
    return 0;
}