No. XXXIII

The sentence formed with the ten letters above the line, which is the key to this sum, is Do your best. If these letters are numbered consecutively 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, and the corresponding figures are substituted for the letters, the sum works out as is shown in the second diagram—

SB 97
RE68
YD31
OT40
UO52
OEE288

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