Refer to the passage below and then answer the question afterwards in the same language as the passage:

Passage: P. m. dilutus, described by Charles Wallace Richmond in 1856, is resident in the extreme northeast of Iran, northern Pakistan and northwest India. It also occurs further north, from Uzbekistan and Tajikistan east to China. Compared to P. m. montanus, it is paler, with sandy-brown upperparts.

Question: What country is east of Tajikistan?
China