const int blen = 7;
const unsigned base = (int)1e7;
const int mlen = 20010;

#include "..\\base.cpp"

void Mul( num &c, num &a, num &b )
{
  int la = Len(a), lb = Len(b);
  memset(c, 0, sizeof(c));
  assert(la + lb < mlen);
  forn(i, la)
    forn(j, lb)
      c[i + j] += a[i] * b[j];
  forn(i, la + lb)
    if (c[i] >= base)
      c[i + 1] += c[i] / base, c[i] %= base; 
}

num c, a, b;

int main()
{
  Read(a);
  Read(b);
  Mul(c, a, b);
  Out(c);
  return 0;
}