View Compilation Error

0_0_30916432_12591.cpp: In function 'int main()':
0_0_30916432_12591.cpp:5:28: error: expected primary-expression before '%' token
     While(scanf("%d %d",&A,%B));
                            ^
0_0_30916432_12591.cpp:5:31: error: 'While' was not declared in this scope
     While(scanf("%d %d",&A,%B));
                               ^