int?main()
{
int?n,?k;
int?M,?i;
scanf("%d",?&M);?//M個測試案例
while?(?M--?)
{
double?dHouse=200,dMoney=0?;
scanf("%d%d",&n,?&k)?;?//收入?漲幅
for(?i=0;i<20;i++?)
{
dHouse=dHouse*(100+k)/100?;
dMoney?+=?n?;
printf("%lf?%lf\n",?dHouse,dMoney?);
if?(?dMoney?>=?dHouse?)
break?;
}
if?(?i?>=?20?)
{
printf("Impossible\n");
}
else
{
printf("%d\n",?i+1?);
}
}
return?0;
}