AI

def signal(locationA, locationB, trafficA, trafficB):
    if locationA == 'A' and trafficA  == 'H' and locationB == 'B' and trafficB == 'L':
        action = locationA + 'Green' + locationB + 'Red'
    elif locationA == 'A' and trafficA == 'L' and locationB == 'B' and trafficB == 'L':
        action = locationA + 'green' + locationB + 'Red'
    elif locationA == 'A' and trafficA == 'L' and locationB == 'B' and trafficB == 'H':
        action = locationA + 'Red' + locationB + 'Green'
    return action

'''
locationA = input('Enter location for A')
locationB = input('Enter location for B')
trafficA = input('Traffic condition in A')
trafficB = input('Traffic condition in B')
'''

locationA = 'A'
locationB = 'B'
trafficA = 'H'
trafficB = 'L'

signal(locationA, locationB, trafficA, trafficB)