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  1. USING: io;
  2. "Enter a string: " write
  3. readln
  4. "Enter a number: " write
  5. readln string>number
Runtime error #stdin #stdout 0.18s 159232KB
stdin
Hello World!
30
stdout
./prog.factor

1: USING: io;
             ^
Vocabulary does not exist
name "io;"