#include#include int main() { int a,b; scanf("%d %d",&a,&b); int ans=0,count=0; while(a) { int m=a%10; ans+=m*pow(b,count++); a/=10; } printf("%d",ans); return 0; }

#include#include int main() { int a,b; scanf("%d %d",&a,&b); int ans=0,count=0; while(a) { int m=a%10; ans+=m*pow(b,count++); a/=10; } printf("%d",ans); return 0; }