Incoming calls to a customer call centre come from two districts: District A (60% of calls) and district B (40% of calls). Of the callers from District A, 56% are dissatisfied with the service offered by the call center while 33% are moderately satisfied and the remaining 11% are very satisfied with the call centre service. Of the calls coming from District B, 46% are dissatisfied with the service offered by the service centre while 34% are moderately satisfied and the remaining 20% are very satisfied with the service. What is the probability that an incoming call to the customer service centre will be from a customer who will be either moderately satisfied or very satisfied with the service given by the call centre?