\[\boxed{\mathbf{474.}}\]
\[12 \cdot 2 = 24\]
\[12 + 12 = 24\]
\[12 \cdot 3 = 36\]
\[12 + 12 + 12 = 36\]
\[12 \cdot 4 = 48\]
\[12 + 12 + 12 + 12 = 48\]
\[13 \cdot 3 = 39\]
\[13 + 13 + 13 = 39\]
\[14 \cdot 2 = 28\]
\[14 + 14 = 28\]
\[11 \cdot 5 = 55\]
\[11 + 11 + 11 + 11 + 11 = 55\]
\[21 \cdot 2 = 42\]
\[21 + 21 = 42\]
\[23 \cdot 3 = 69\]
\[23 + 23 + 23 = 69\]
\[22 \cdot 4 = 88\]
\[22 + 22 + 22 + 22 = 88\]
\[31 \cdot 2 = 62\]
\[31 + 31 = 62\]
\[32 \cdot 2 = 64\]
\[32 + 32 = 64\]
\[33 \cdot 3 = 99\]
\[33 + 33 + 33 = 99\]
\[42 \cdot 2 = 84\]
\[42 + 42 = 84\]
\[43 \cdot 2 = 86\]
\[43 + 43 = 86\]
\[44 \cdot 2 = 88\]
\[44 + 44 = 88\]