what is printed out by the following code when Main() is run?

help please in pyhton

def F1 (X,Y,Z): Q = X + Y - Z return (+1 def F2 (Y,Z,X=4): Q = F1(Y, X, Z) return Q def F3 (Z, Y=1,X=2): Q = F1(F2(X,Y),Z,Z) return Q def Main(): print ("Line 1 = ",F1 (5,6,-3)) print ("Line 2 = ",F2 (3,1,5)) print ("Line 3 = ", F1 (3,5,2)) print ("Line 4 = ",F3 (4)) print ("Line 5 = ", F2 (5,1)) return Line 1 = Line 2 = Line 3 = Line 4 = Line 5 =