View Code of Problem 442

#include<stdio.h> 
void main()
{
	int T;
	scanf("%d",&T);
	while(T--)
	{
		int i,j,k,n;
		scanf("%d",&n);
		for(i=1;k<n;i++)
		{
			k=0;
			if(i%7==0||i%10==7||i/10%10==7||i/100==7)
			{
				k++;
				for(j=i+1;k<n;j++)
				{
					if(j%7==0||j%10==7||j/10%10==7||j/100==7)
					{
						k++;
					}else
					{
						break;
					}
				}
			}
		}
		printf("%d\n",i-1);
	} 
}