Jam has a math problem. He just learned factorization. He is trying to factorize $ax^2+bx+c$ into the form of $pqx^2+(qk+mp)x+km=(px+k)(qx+m)$. He could only solve the problem in which p,q,m,k are positive numbers. Please help him determine whether the expression could be factorized with p,q,m,k being postive.
The first line is a number $T$, means there are $T(1 \leq T \leq 100 )$ cases
Each case has one line,the line has $3$ numbers $a,b,c (1 \leq a,b,c \leq 100000000)$