0_0_18643373_17135.cpp: In function 'int main()':
0_0_18643373_17135.cpp:4:28: error: 'scanf' was not declared in this scope
while (scanf("%d,%d",&a,&b)!=EOF)
^
0_0_18643373_17135.cpp:4:31: error: 'EOF' was not declared in this scope
while (scanf("%d,%d",&a,&b)!=EOF)
^
0_0_18643373_17135.cpp:7:20: error: 'printf' was not declared in this scope
printf("%d\n",sum);
^
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