void multiply(int a[], int n, int b[], int m, int r[], int t) {
    int k=0,s=0,i,j;
    for(i=0;i<t;i++){
        r[i]=0;
    }
    for(i=0;i<n;i++){
        k=0;
        k=k+i;
        for(j=0;j<m;j++){
            r[k]+=a[i]*b[j];
            k++;
        }
    }
    for(i=0;i<t;i++){
        if(r[i]<100)
        {
        r[i]=r[i]%10;
        r[i+1]+=r[i]/10;
        }
        else
        {
           r[i]=r[i]%100;
            r[i+2]+=r[i]/100;
            r[i+1]+=r[i]/10;
        }
         }
}