print(1)
print(1, 2, 3)
print()
print(sep='#')
print(end='!\n')
print(sep='#', end='!\n')
print(end='!\n', sep='#')
print(1, sep='#', end='!\n')
print(1, 2, 3, sep='#', end='!\n')
#print(1, sep='$', 2)