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(import (scheme base)
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(picrin test))
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(test-begin)
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(test "-0.1" (substring (number->string -0.1) 0 4))
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(test "-0.9" (substring (number->string -0.9) 0 4))
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(test "-1.0" (substring (number->string -1.0) 0 4))
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(test "-1.1" (substring (number->string -1.1) 0 4))
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(test-end)
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