 

Jan, Kate, Mike, and Sam have lots of shells and many pails. They put groups of 10 shells in each pail.
- Kate has 2 pails and 3 more shells left over.
- Sam has 1 more pail than Kate, but no shells left over.
- Jan has 4 more shells than Sam.
- Kate has 2 more shells than Mike.
How many shells does each have?
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