string = input('Vvedite chisla razdelyaya ih probelami: ')
a = list(map(int, string.split(' ')))
# Пусть будет так :)
res = [a[i-1] + a[i+1] if i < len(a) - 1 else a[i-1] + a[0] for i, x in enumerate(a)] if len(a) > 1 else a
print(' '.join(map(str, res)))