/* 计算过了D天后的日期 之前D天的日期 */ #include<stdio.h> int judge_year( int year ){ if( (year%4==0&&year%100!=0)||(year%400==0) ) return true; else return false; } int judge_month( int mon ){ if( mon==1||mon==3||mon==5||mon==7||mon==8||mon==10||mon==12 ) return true; else return false; } int main(){ int ca; //freopen("cmp.txt","w",stdout); scanf("%d",&ca); while( ca-- ){ int n; scanf("%d",&n); int year,mon,day; year = 2013; mon = 3; day = 24; int sum = n; while( sum>0 ){ if( judge_year(year)==true ){ //printf("sum=%d,,year = %d,mon=%d,day=%d\n",sum,year,mon,day); if( mon==2 ){ int left = 29-day; if( sum>left ){ sum = sum-(left+1); mon++; day = 1; } else if( sum==left ){ sum = 0; day = 29; } else { day += sum; sum = 0; } } else if( judge_month( mon )==true ){ int left = 31-day; if( sum>left ){ sum = sum-left-1; mon++; if( mon>12 ) { year++; mon = 1; } day = 1; } else if( sum==left ){ sum = 0; day = 31; } else{ day += sum; sum = 0; } } else { int left = 30-day; if( sum>left ){ sum = sum-left-1; mon++; if( mon>12 ) { year++; mon = 1; } day = 1; } else if( sum==left ){ sum = 0; day = 30; } else{ day += sum; sum = 0; } } }//闰年 else{ if( mon==2 ){ int left = 28-day; if( sum>left ){ sum = sum-left-1; mon++; day = 1; } else if( sum==left ){ sum = 0; day = 28; } else { day += sum; sum = 0; } } else if( judge_month( mon )==true ){ int left = 31-day; if( sum>left ){ sum = sum-left-1; mon++; if( mon>12 ) { year++; mon = 1; } day = 1; } else if( sum==left ){ sum = 0; day = 31; } else{ day += sum; sum = 0; } } else { int left = 30-day; if( sum>left ){ sum = sum-left-1; mon++; if( mon>12 ) { mon = 1; year++; } day = 1; } else if( sum==left ){ sum = 0; day = 30; } else{ day += sum; sum = 0; } } }//不是闰年 if( sum<=0 ) break; }//向后D天的日期 printf("%04d/%02d/%02d ",year,mon,day); year = 2013; mon = 3; day = 24; sum = n; while( sum>0 ){ if( judge_year( year )==true ){ if( sum>=366 ){ sum-=366; year--; } else{ if( mon==3 ){ int left = day; if( sum>=29 ){ sum-=29; mon--; } else { if( sum==left-1 ){ sum = 0; day = 1; } else if( sum<left-1 ){ day -= sum; sum = 0; } else { sum -= left; day = 29; mon--; } } } else if( mon==5||mon==7||mon==10||mon==12 ){ int left = day; if( sum>=30 ){ sum-=30; mon--; } else { if( sum==left-1 ){ sum = 0; day = 1; } else if( sum<left-1 ){ day -= sum; sum = 0; } else { sum -= left; day = 30; mon--; } } } else { int left = day; if( sum>=31 ){ sum-=31; mon--; if( mon<=0 ){ year--; mon=12; } } else { if( sum==left-1 ){ sum = 0; day = 1; } else if( sum<left-1 ){ day -= sum; sum = 0; } else { sum -= left; day = 31; mon--; if( mon==0 ){ mon = 12; year--; } } } } } }//闰年 else { if( sum>=365 ){ sum-=365; year--; } else{ if( mon==3 ){ int left = day; if( sum>=28 ){ sum-=28; mon--; } else { if( sum==left-1 ){ sum = 0; day = 1; } else if( sum<left-1 ){ day -= sum; sum = 0; } else { sum -= left; day = 28; mon--; } } } else if( mon==5||mon==7||mon==10||mon==12 ){ int left = day; if( sum>=30 ){ sum-=30; mon--; } else { if( sum==left-1 ){ sum = 0; day = 1; } else if( sum<left-1 ){ day -= sum; sum = 0; } else { sum -= left; day = 30; mon--; } } } else { int left = day; if( sum>=31 ){ sum-=31; mon--; if( mon==0 ){ year--; mon=12; } } else { if( sum==left-1 ){ sum = 0; day = 1; } else if( sum<left-1 ){ day -= sum; sum = 0; } else { sum -= left; day = 31; mon--; if( mon==0 ){ mon = 12; year--; } } } } } }//不是闰年 if( sum<=0 ) break; } printf("%04d/%02d/%02d\n",year,mon,day); } return 0; }