三個非負(fù)整數(shù)a,b,c;
30% a <= 100, b <= 10^4, 1 <= c <= 100 60% a <=10^4, b <= 10^5, 1 <= c <= 10^4 100% a <=10^6, b <= 10^9, 1 <= c <= 10^6
7 2 5
4