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040-B3-2

3. One of the letters of a password that opens a treasure box is lost.
The mathematician said that the lost letter can be found by solving
the addition problems and coloring the boxes whose answers match
the numbers given in the box shown below. Find the lost letter.

110 120 121 135

136 138 140 167

36 83 55 37
+8 5 +2 8 +7 7 +9 9

93 45 43 56
+4 8 +7 5 +9 5 +4 7

87 72 79 49
+5 5 +9 5 +5 6 +8 3

28 47 96 44
+8 2 +7 6 +2 9 +9 6

The lost letter is .
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