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  1. #!/bin/bash
  2.  
  3. for testcase in 6 11; do
  4. set $testcase
  5.  
  6. eval echo {1..$1} + {$1..1}|tr -d \ |bc
  7.  
  8. bc<<<`eval printf %s {1..$1} + {$1..1}`
  9.  
  10. done
  11.  
Success #stdin #stdout 0s 5088KB
stdin
Standard input is empty
stdout
777777
777777
2345555545332
2345555545332