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Problem DepartmentEves, Howard; Guerin, Joseph S.; Kelly, L. M.; Grossman, Howard; Fettis, H. E.; Court, N. A.; Springer, C. E.; Thomas, P. D.; Sisk, A.; Mind, Nev. R.; Butchart, J. H.; Thebault, V.; Piza, Pedro A.; Byrne, W. E.; MacKay, D. L.; Gentry, Frank C. · National Mathematics Magazine · 1945