<Tr> <Td> * </Td> <Td> * </Td> <Td> * </Td> <Td> - </Td> <Td_colspan="4"> Syas </Td> <Td> 260 </Td> <Td> 7330 </Td> <Td> 53 </Td> <Td> Lake Ladoga in Syasstroy </Td> <Td> </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> * </Td> <Td> * </Td> <Td> * </Td> <Td> - </Td> <Td_colspan="4"> Volkhov ← Lake Ilmen ← Msta - system </Td> <Td> 844 </Td> <Td> 80200 </Td> <Td> 580 </Td> <Td> Lake Ladoga near Volkhov </Td> <Td> </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> * </Td> <Td> * </Td> <Td> * </Td> <Td> - </Td> <Td> - </Td> <Td_colspan="3"> Msta ← Lake Mstino ← Tsna </Td> <Td> 620 </Td> <Td> 23300 </Td> <Td> 202 </Td> <Td> Lake Ilmen near Velikiy Novgorod </Td> <Td> </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> * </Td> <Td> * </Td> <Td> * </Td> <Td> - </Td> <Td> - </Td> <Td_colspan="3"> Pola </Td> <Td> 267 </Td> <Td> 7420 </Td> <Td> 63 </Td> <Td> Lake Ilmen near Staraya Russa </Td> <Td> </Td> <Td> </Td> <Td> </Td> </Tr>

Which of the river doesn't flow from east to west