using namespace std;

int main()

{

char ch;

int sa11[10000]={0},sb11[10000]={0},sa21[10000]={0},sb21[10000]={0};

int t11=1,t21=1,sca11=0,scb11=0,sca21=0,scb21=0;

int first=0;

while(cin>>ch)

{

if (ch=='E')

{

if(first==0) {cout<<"0:0"<<endl<<endl<<"0:0";return 0;}

sa11[t11]=sca11;sb11[t11]=scb11;sa21[t21]=sca21;sb21[t21]=scb21;t11++;t21++;break;

}

first++;

if (ch=='W'){sca11++;sca21++;}

if (ch=='L'){scb11++;scb21++;}

if (sca11>=11&&sca11-scb11>=2) {sa11[t11]=sca11;sb11[t11]=scb11;t11++;sca11=0;scb11=0;}

if (scb11>=11&&scb11-sca11>=2) {sa11[t11]=sca11;sb11[t11]=scb11;t11++;sca11=0;scb11=0;}

if (sca21>=21&&sca21-scb21>=2) {sa21[t21]=sca21;sb21[t21]=scb21;t21++;sca21=0;scb21=0;}

if (scb21>=21&&scb21-sca21>=2) {sa21[t21]=sca21;sb21[t21]=scb21;t21++;sca21=0;scb21=0;}

}

for (int i=1;i<t11;i++)

{

cout<<sa11[i]<<':'<<sb11[i]<<endl;

}

cout<<endl;

for (int i=1;i<t21;i++)

{

cout<<sa21[i]<<':'<<sb21[i]<<endl;

}

return 0;

}

using namespace std;

int main()

{

char ch;

int sa11[10000]={0},sb11[10000]={0},sa21[10000]={0},sb21[10000]={0};

int t11=1,t21=1,sca11=0,scb11=0,sca21=0,scb21=0;

int first=0;

while(cin>>ch)

{

if (ch=='E')

{

if(first==0) {cout<<"0:0"<<endl<<endl<<"0:0";return 0;}

sa11[t11]=sca11;sb11[t11]=scb11;sa21[t21]=sca21;sb21[t21]=scb21;t11++;t21++;break;

}

first++;

if (ch=='W'){sca11++;sca21++;}

if (ch=='L'){scb11++;scb21++;}

if (sca11>=11&&sca11-scb11>=2) {sa11[t11]=sca11;sb11[t11]=scb11;t11++;sca11=0;scb11=0;}

if (scb11>=11&&scb11-sca11>=2) {sa11[t11]=sca11;sb11[t11]=scb11;t11++;sca11=0;scb11=0;}

if (sca21>=21&&sca21-scb21>=2) {sa21[t21]=sca21;sb21[t21]=scb21;t21++;sca21=0;scb21=0;}

if (scb21>=21&&scb21-sca21>=2) {sa21[t21]=sca21;sb21[t21]=scb21;t21++;sca21=0;scb21=0;}

}

for (int i=1;i<t11;i++)

{

cout<<sa11[i]<<':'<<sb11[i]<<endl;

}

cout<<endl;

for (int i=1;i<t21;i++)

{

cout<<sa21[i]<<':'<<sb21[i]<<endl;

}

return 0;

}