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that which whatever however
find to find finding found
difficulty; finding difficulty; to find difficult; finding difficult; found
for;that for;because to;that to;because
no difficulties finding not trouble in finding no difficulty to find no difficulty finding
walked walk to walk walking
to solve solved solving solve
would could had to were able to
walking to walk walked to walking
Under; took no trouble in solving In; had no trouble at solving On; kept no troubles to solve With; had no difficulty solving
difficulties in difficulty with difficulty difficulty to
walked walking to walk walk
difficulties in difficulty with difficulty difficulty to
no difficulties to find some difficulties in finding no difficulty to find no difficulty in finding
studied to study been studying studying
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