Compile Error

Compile Error
Main.cpp
Main.cpp(18) : error C2374: 'i' : redefinition; multiple initialization
        Main.cpp(16) : see declaration of 'i'
Main.cpp(22) : error C2374: 'j' : redefinition; multiple initialization
        Main.cpp(20) : see declaration of 'j'
Main.cpp(29) : error C2374: 'j' : redefinition; multiple initialization
        Main.cpp(26) : see declaration of 'j'
Main.cpp(33) : error C2086: 'i' : redefinition