#include<stdio.h> #include<string.h> #define N 26000 int ans[N+1],temp1[N+1],temp2[N+1]; void multi(int site, int n){ int i,j,len1,len2; temp2[0]=1,site=n*site; while(n--){ for(i=N-1;i>=0;i--) if(temp1[i]!=0) { len1=i; break; } for(j=N-1;j>=0;j--) if(temp2[j]!=0) { len2=j; break; } for(i=0;i<=len1;i++){ for(j=0;j<=len2;j++) ans[i+j]+=temp1[i]*temp2[j]; } for(i=0;i<N;i++){ if(ans[i]>=10) { ans[i+1]+=ans[i]/10; ans[i]%=10; } } for(i=0;i<N;i++){ temp2[i]=ans[i]; if(n!=0) ans[i]=0; } } for(i=N-1;i>=0;i--){ if(ans[i]!=0){ len1=i; break; } } for(i=0;i<N;i++){ if(ans[i]!=0){ len2=i; break; } } if(len1==site) len1=site; else if(len1<site) len1=site-1; for(i=len1;i>=len2;i--){ if(i==site-1) printf("."); printf("%d",ans[i]); } printf("\n"); } int main(){ int n,len,i,j,site; char s[20]; while(scanf("%s %d",s,&n)!=EOF){ memset(temp1,0,sizeof(temp1)); memset(temp2,0,sizeof(temp2)); memset(ans,0,sizeof(ans)); len=strlen(s); if(n==0) { printf("1\n"); continue; } for(i=len-1,site=0,j=0;i>=0;i--){ if(s[i]!='.') temp1[j++]=s[i]-'0'; else site=j; } multi(site,n); } return 0; }