0_0_31153986_29761.cpp: In function 'int main()':
0_0_31153986_29761.cpp:4:9: error: expected '(' before '{' token
while{(scanf("%lld%lld\n",&a,&b)!=EOF)
^
0_0_31153986_29761.cpp:4:9: error: expected primary-expression before '{' token
0_0_31153986_29761.cpp:4:9: error: expected ')' before '{' token
0_0_31153986_29761.cpp:5:5: error: expected ';' before 'sum'
sum=a+b;
^
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