0_0_37330881_20901.cpp: In function 'int main()':
0_0_37330881_20901.cpp:4:25: error: 'scanf' was not declared in this scope
while(scanf("%d%d",&a,&b)!=EOF)
^
0_0_37330881_20901.cpp:4:28: error: 'EOF' was not declared in this scope
while(scanf("%d%d",&a,&b)!=EOF)
^
0_0_37330881_20901.cpp:5:18: error: 'printf' was not declared in this scope
printf("%d\n",a+b);
^
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