v = list()
t = int(input())
for i in range(t):
a = int(input())
b = int(input())
v.append(a*b);
for i in range(t):
print(v[i])
diA9IGxpc3QoKQp0ID0gaW50KGlucHV0KCkpCmZvciBpIGluIHJhbmdlKHQpOgoJYSA9IGludChpbnB1dCgpKQoJYiA9IGludChpbnB1dCgpKQoJdi5hcHBlbmQoYSpiKTsKCmZvciBpIGluIHJhbmdlKHQpOgoJcHJpbnQodltpXSk=