0_0_14908144_2439.cpp: In function 'int main()': 0_0_14908144_2439.cpp:5:35: error: 'While' was not declared in this scope While(scanf("%d%d",&a,&b)!=EOF) ^ 0_0_14908144_2439.cpp:9:5: error: 'return0' was not declared in this scope return0; ^