/*#include<stdio.h>
int main()
{
int i, j, n, k=1;
scanf("%d", &n);
for(i=0; i<n; i++)
{
for(j=0; j<n; j++)
{
printf("%d ", k);
if((i+1)%2!=0) k++;
else k--;
}
printf("\n");
if((i+1)%2!=0) k += n-1;
else k += n+1;
}
return 0;
}*/
/*#include<stdio.h>
int main()
{
int i, j, n, k=1;
int arr[101][101] ={};
scanf("%d", &n);
for(i=0; i<n; i++)
{
for(j=0; j<n; j++)
{
if((i+1)%2!=0) arr[j][i] = k;
else arr[n-j-1][i] = k;
k++;
}
}
for(i=0; i<n; i++)
{
for(j=0; j<n; j++)
{
printf("%d ", arr[i][j]);
}
printf("\n");
}
return 0;
}*/
/*#include<stdio.h>
int main()
{
int i, j, n, m, k = 1;
int arr[101][101] = {};
scanf("%d %d", &n, &m);
for(i=0; i<n; i++)
{
for(j=0; j<m; j++)
{
if((i+1)%2!=0) arr[i][j] = k;
else arr[i][m-j-1] = k;
k++;
}
}
for(i=0; i<n; i++)
{
for(j=0; j<m; j++)
{
printf("%d ", arr[n-i-1][m-j-1]);
}
printf("\n");
}
return 0;
}*/
/*#include<stdio.h>
int main()
{
int i, j, n, m, k = 1;
int arr[101][101] = {};
scanf("%d %d", &n, &m);
for(i=0; i<m; i++)
{
for(j=0; j<n; j++)
{
if((i+1)%2!=0) arr[i][j] = k;
else arr[i][n-j-1] = k;
k++;
}
}
for(i=0; i<n; i++)
{
for(j=0; j<m; j++)
{
printf("%d ", arr[m-j-1][n-i-1]);
}
printf("\n");
}
return 0;
}*/
/*#include<stdio.h>
int main()
{
int i=0, j=0, n, m, k = 1;
int y = 0, x = 0;
int arr[101][101] = {};
scanf("%d %d", &n, &m);
while(1)
{
if(n==1&&m==1) break;
arr[i][j] = k;
i--;
j++;
if(i<0||j>(m-1))
{
if(y<(n-1)) y++;
else x++;
i = y;
j = x;
}
k++;
if(k == n*m) break;
}
arr[n-1][m-1] = n*m;
for(i=0; i<n; i++)
{
for(j=0; j<m; j++)
{
printf("%d ", arr[i][j]);
}
printf("\n");
}
return 0;
}
0 1 2 3
a=(a+1)%4;
a i j
0 0 +1
1 +1 0
2 0 -1
3 -1 0
i + dir[a][0]
j + dir[a][1]
*/
/*#include<stdio.h>
int main()
{
int i, j, n, m, k = 1, l=1, a = 0;
int arr[103][103] = {};
int dir[4][2]={{0,+1},{+1,0},{0,-1},{-1,0}};
scanf("%d %d", &n, &m);
for(i=0; i<m+2; i++)
{
arr[0][i] = 1;
arr[n+1][i] = 1;
}
for(i=0; i<n+2; i++)
{
arr[i][0] = 1;
arr[i][m+1] = 1;
}
i = 1;
j = 1;
while(1)
{
arr[i][j] = k;
if(arr[i+ dir[a][0]][j + dir[a][1]]!=0) a = (a+1)%4;
i += dir[a][0];
j += dir[a][1];
k++;
if(k>n*m) break;
}
for(i=1; i<=n; i++)
{
for(j=1; j<=m; j++)
{
printf("%d ", arr[i][j]);
}
printf("\n");
}
return 0;
}*/
/*#include<stdio.h>
int main()
{
int x1, x2, y1, y2, sum = 0, k, i, j, x = 0, y = 0;
int arr[101][101] = {};
for(k=0; k<4; k++)
{
scanf("%d %d %d %d", &x1, &y1, &x2, &y2);
for(i=y1; i<y2; i++)
{
for(j=x1; j<x2; j++) arr[i][j] = 1;
}
if(x<x2) x = x2;
if(y<y2) y = y2;
}
for(i=0; i<y; i++)
{
for(j=0; j<x; j++)
{
sum += arr[i][j];
}
}
printf("%d", sum);
return 0;
}*/
/*#include<stdio.h>
int main()
{
int i, j, n, k;
int arr[21][21] = {};
scanf("%d", &n);
for(i=0; i<n; i++)
scanf("%d", &arr[i][0]);
for(i=1; i<n; i++)
{
for(j=1; j<i+1; j++)
{
arr[i][j] = arr[i][j-1]-arr[i-1][j-1];
}
}
for(i=0; i<n; i++)
{
for(j=0; j<i+1; j++)
{
printf("%d ", arr[i][j]);
}
printf("\n");
}
return 0;
}
*/
#include<stdio.h>
int main()
{
int i, j, d = 0;
int arr[20][20] = {};
for(i=0; i<11; i++)
{
for(j=0; j<10; j++)
{
scanf("%d", &arr[j][11-i-1]);
}
}
for(i=0; i<10; i++)
{
for(j=0; j<10; j++)
{
if(arr[i][0]==0)
{
d = 1;
break;
}
else
{
if(arr[i][j+1]>0)
{
printf("%d crash\n", i+1);
d = 1;
break;
}
else if(arr[i][j+1]<0)
{
printf("%d fall\n", i+1);
d = 1;
break;
}
}
}
if(d != 1) printf("%d safe\n", i+1);
d = 0;
}
return 0;
}