TILE3D = int(input("Enter your desired 3D TILE module number:"))
TILE2D = int(input("Enter your desired 2D TILE module number:"))
Q = float(input("Enter desired flow rate in mL/hr:"))
numr = int(TILE3D+TILE2D)

if (numr %2)==0:
    print("recirculatory loop possible")
else:
    print("only serial and multiplex cultures")

P3D = 394.58*Q-0.0003
P2D = 77.981*Q-0.000005
TotalPressure = P3D*TILE3D +P2D*TILE2D

print("Pressure needed (Pa) = ", TotalPressure)

frequency = (TotalPressure-0.18253)/21.77263
if frequency <3:
    print("1 pump achievable")
else:
    print("need more pump")