int Y,X,T;char B[32][32],K[32][32],Ks[32],px[2048];
int tr(int x,int y){int i=0,d=0;
for(;B[x][y];i++){px[i*2]=x;px[i*2+1]=y;x+=(d==2)-(d==1);y+=(d==3)-(d==0);
d=(54202126527627840ll>>2*(d*7+B[x][y]))&3;
if(x==px[0]&&y==px[1])return i+1;
}return T;}
void m(int x,int y) {
int i,o,c=K[x][y],Bu=B[x][y-1],Bl=B[x-1][y];
if(y>Y){for(i=0;i<T*2;i++)printf("%d ",px[i]-1);exit(0);}
o=((39>>Bu)&1?57:70)&((52>>Bl)&1?42:85);
if(x==X)o&=75;
if(y==Y)o&=39;
if(c==2)o&=96;
if(K[x][y-1]==2)o&=~64;
if(K[x-1][y]==2)o&=~32;
if(c==1)o&=Bu==3||Bu==4||Bl==2||Bl==4?0:30;
if(K[x][y-1]==1)o&=~6;
if(K[x-1][y]==1)o&=~10;
for(i=0;i<7;i++)if(o&(1<<i)){
B[x][y]=i;
if(c==2&&(i==5&&Bl!=5||i==6&&Bu!=6))K[x][y]=0;
T+=i&&!c;
if(i!=1||T==tr(x,y))x<X?m(x+1,y):m(1,y+1);
T-=i&&!c;
K[x][y]=c;}
B[x][y]=0;}
main(){for(;gets(Ks);Y++)for(X=0;Ks[X];X++)
T+=(K[X+1][Y+1]=Ks[X]=='w'?2:Ks[X]=='b')>0;
m(1,1);return 0;}

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.....w.b.w..
ww..b...b...
.w.....b....
...wbww..b.b
....b.......
w.w.........
..w......b.b
.....bb.....
.....b.....w
w.ww..b.....
...w......w.
b..w.....b..