#include <bits/stdc++.h> using namespace std; int main(){ char a1[100],b1[100]; int a[100],b[100],c[100],lena,lenb,lenc,i,j,x; memset(a,0,sizeof(a)); memset(b,0,sizeof(b)); memset(c,0,sizeof(c)); gets(a1); gets(b1); lena=strlen(a1); lenb=strlen(b1); for(i=0;i<=lena-1;i++)a[lena-i]=a1[i]-48; for(i=0;i<=lenb-1;i++)b[lenb-i]=b1[i]-48; for(i=1;i<=lena;i++){ x=0; for (j=1;j<=lenb;j++){ c[i+j-1]=a[i]*b[j]+x+c[i+j-1]; c[i+j-1] %= 10; } c[i+lenb]=x; } lenc=lena+lenb; while(c[lenc]==0&&lenc>1)lenc--; for(i=lenc;i>=1;i--)cout << c[i]; cout << endl; return 0; }