A, B, C, D = map(int,input().split()) flag1 = B > C flag2 = D > A flag3 = (C+D) > (A+B) flag4 = C>0 and D>0 flag5 = A % 2 == 0 if flag5 and flag4 and flag3 and flag2 and flag1: print('Valores aceitos') else: print('Valores nao aceitos')