Code: Select all
#include<stdio.h>
#include<iostream.h>
int main()
{
long int i,n;
cin>>n;
for(i=1;i<=n;i++)
{long int j,sum1,k,count,tmp;
char a[20]={'0'};
sum1=0;
scanf("%[^\n]s",a);getchar();
count=0;j=0;
while(count!=16)
{
if(a[j]!=32)
{
k=int (a[j])-48;
if(count%2==0)
{
k=k*2;
if(k>=10)
{
tmp=k%10;
k=k/10;
k=k+tmp;
}
}
sum1=sum1+k;
count++;
}
j++;
}
if(sum1%10==0)
cout<<"Valid"<<endl;
else
cout<<"Invalid"<<endl;
}
return 0;
}