import random
def genSign(lenghtofsignal=20):
    for x in range(lenghtofsignal):
        x= random.randint(0,1)
        print(x, end='' )
    print('')

def andSign(A1, A2):
    i=0
    andS = ' '
    for element in A1:
        if A1 == A2:
            andS = andS + A1
            i=i+1
        else:
            andS = andS + "0"
            i=i+1

def notSign(Sign):
	notS=''
	for noBit in range(len(Sign)):
		if Sign[noBit] == '0':
			notS += '1'
		else: notS += '0'
	return notS

#def Q121(w, t = 4):

A1 = genSign()
A2 = genSign()
B = genSign()
A1A2 = andSign(A1, A2)
notA1A2 = notSign(A1, A2)
W = andSign(B, notA1A2)
Q = Q121(w, t)

print ("A1 > " + A1)
print ("A2 > " + A2)
print ("A1A2 >"+A1A2)
print ("!A1A2 >"+notA1A2)
print ("B > " + B)
print ("W > " + W)
print ("Q > " + Q)