0_0_18642243_25272.cpp: In function 'int main()':
0_0_18642243_25272.cpp:5:22: error: 'a' was not declared in this scope
while (scanf("%d%d",&a,&b)!=EOF
^
0_0_18642243_25272.cpp:5:25: error: 'b' was not declared in this scope
while (scanf("%d%d",&a,&b)!=EOF
^
0_0_18642243_25272.cpp:6:1: error: expected ')' before '{' token
{
^
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