City        Type        Population (millions)
----------- ----------- ---------------------
Calcutta    Megapolis    12.0
Tokyo       Megapolis    26.8
Delhi       Megapolis    10.0
Bombay      Megapolis    15.0
Cairo       Metropolis   12.0
New York    Metropolis    7.5
Los Angeles Metropolis    3.7
Jakarta     Metropolis    8.2

After sorting...

Tokyo       Megapolis    26.8
Bombay      Megapolis    15.0
Calcutta    Megapolis    12.0
Cairo       Metropolis   12.0
Delhi       Megapolis    10.0
Jakarta     Metropolis    8.2
New York    Metropolis    7.5
Los Angeles Metropolis    3.7