Geography

1. Poland ---

(1) Population --- about 38.5 millions (2014)

(2) Area --- 312,679 km²

(3) Capital --- Warsaw (population 2015: 1.74 million)

(4) GDP per capita (2016) --- nominal: $13,390; PPP: $27,654

(from wikipedia 2016-10-26 http://en.wikipedia.org/wiki/Poland)

(cf. Taiwan: nominal: $24,985, PPP: $48,703 (2016))

(from wikipedia 2016-10-26 http://en.wikipedia.org/wiki/Taiwan)

2. Slovakia ---

(1) Population --- about 5.43 millions

(2) Area --- 49,035 km²

(3) Capital --- Bratislava (population 2015: 422,932)

(4) GDP per capita (2015) --- nominal: $16,138, PPP: $29,209

(from wikipedia 2016-10-26 http://en.wikipedia.org/wiki/Slovakia)

3. Hungary ---

(1) Population --- about 9.86 millions

(2) Area --- 93,030 km²

(3) Capital --- Budapest (population 2015: 1.76 million)

(4) GDP per capita (2016 est.) --- nominal: $13,487; PPP: $26,941

(from wiki pedia 2016-10-26 http://en.wikipedia.org/wiki/Hungary )