#include <stdio.h> int main(int argc, char** argv) { int i,j,a,b; long long t; while(scanf("%d %d",&i,&j)!=EOF) { t=0; for(a=1;a<=i;a++){ for(b=1;b<=j;b++){ t+=a*b; } } printf("%lld\n",t); }

return 0;

}