The table shows the population (in '000s) of four cities, and the bar graph shows the percentage of literate people in each city. City A: Population 250, Literacy 70%. City B: Population 300, Literacy 60%. City C: Population 180, Literacy 80%. City D: Population 240, Literacy 65%. What is the total number of illiterate people (in '000s) across all four cities?