import numpy as np

def accuracy_score(y_true, y_pred):
    cnt = 0
    for i in range(len(y_true)):
        if y_true[i] == y_pred[i]:
            cnt+=1
    accuracy = cnt/len(y_true)
    return accuracy
    
    
if __name__ == "__main__":
    y_true = np.array(eval(input()))
    y_pred = np.array(eval(input()))
    print(accuracy_score(y_true, y_pred))