Calculate Password Possibilities With Specific Character Pattern So i need to estimate the number o

Calculate Password Possibilities With Specific Character Pattern
So i need to estimate the number of possibilities of a 8 characters password all stick together with a specified pattern wish have only:
uppercase letter and numbers. no special characters
The pattern is : Number, Number, Up Letter, Up Letter, Number, Up Letter, Number, Up Letter
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Alexia Hart
There are 10 numbers from 0 to 9 and 26 different (uppercase) letters in the english alphabet. Making a password one will first choose from 10 different numbers and for each of these one can choose from 10 different numbers and so on. The total number of possibilities is:
$10\ast 10\ast 26\ast 26\ast 10\ast 26\ast 10\ast 26={10}^{4}\cdot {26}^{4}$